Word form of large numbers

In the modern world, we regularly encounter the words million and billion, and businesses, governments, astronomers and journalists often think in the millions, billions or even trillions. However, the word million has been around in English only since the late fourteenth century. The word billion was not introduced in the French language until the fifteenth century and didn’t find its way into English until the end of the seventeenth century, which is fairly late in the history of counting. What words were used before this time to talk about large numbers? This article looks at how we started using million and billion and how the meaning of billion has changed.

Before the Words Million and Billion

In fact, the largest number with a single-word name in ancient Greek was 10,000. It was called murios and borrowed into Late Latin as myrias. From myrias we get the English word myriad meaning “an extremely large number or amount”. The ancients also had the “myriad myriad” (10,000 × 10,000) or one hundred million. Larger numbers were described in more roundabout ways or by using mathematical notation; indeed, one million is expressed in Latin as decies centena milia or 10 × 100 × 1,000, and Archimedes (3rd century BCE) had to establish his own system of mathematical notation in order to systematically express numbers larger than the “myriad”. He explains this system in The Sand Reckoner, a treatise that sets out to quantify all the grains of sand in the universe in order to challenge the idea that such a quantity was too large to be counted.

What Exactly Is a Billion?

For those who were taught numbers before the 1970s, the answer to this question may well have been different depending on where you received your schooling. While it is accepted in English today that one billion equals 10⁹, it is important to be aware, especially when reading older texts, that in the United Kingdom billion hasn’t always meant 10⁹. Until the 1970s, when the United Kingdom officially adopted the American definition of billion, this word represented 10¹² in British English.

This difference resulted from the emergence of two competing systems for naming large numbers. A fifteenth-century mathematician, Nicolas Chuquet, established one system by combining Latin numerical prefixes (bi-, tri-, etc.) with the suffix -illion to form powers of one million. In this system, a billion equals one million times one million (or one million squared, 10¹²) and a trillion equals one million cubed (10¹⁸). This is known as the long scale, which was used in the United Kingdom until they followed the United States in 1974 by officially adopting the short scale, a system born in France in the seventeenth century and popular in the French-speaking world until midway through the nineteenth century. The short scale uses the same names (billion, trillion, quadrillion, etc.) but assigns different values to them, with one billion equalling a thousand million, one trillion equalling a thousand billion, and so forth, the logic being that the prefix attached to -illion represents n in the formula 10³⁽ⁿ⁺¹⁾. For example, quadrillion, with the prefix quadri- meaning “four” is equal to 10³⁽⁴⁺¹⁾ or more simply 10¹⁵. The short scale is used today throughout the English-speaking world, whereas the French language has settled on the long scale, so that an English billion is translated in French as un milliard and a French billion (also called mille milliards or “one thousand milliards” in English) is translated in English as a trillion.
The differences between the long scale and the short scale are summarized in this table:

* SI refers to the International System (of Units), a system of measurement widely used in science and international trade.

Abbreviated Forms

People often wonder if there is a correct or best way to abbreviate million and billion when writing about figures.

The most commonly seen short forms for thousand, million, billion and trillion in North America and the United Kingdom, respectively, are outlined in the table below.

Notice that M appears twice in the table above, to represent both thousand and million. Some (especially older) finance texts use M for thousand and MM for million, which can be a source of confusion as M is now widely used to denote million in North America.

Of the style guides that address spacing in this context, most (AP Stylebook, Chicago Manual of Style, Canadian Style, The Economist Style Guide) say to leave no space (100bn, for example), although it is also common in books and newspaper articles to see the abbreviation preceded by a space.

Since there is no universally accepted way of abbreviating these words, the best practice is to be consistent with whatever system of short forms you choose and to ensure that the meanings of your chosen short forms are clear to your audience—for example by establishing at some point in the text that M stands for million, and so forth. Most style guides agree that it is best to spell out these words in full where possible, and to use the abbreviations where spacing is limited (e.g. in headlines and tables) or when figures are repeated often. The Guardian and The Telegraph spell out thousand, million, etc. in full when referring to people and animals and use the abbreviated forms only when discussing inanimate objects or in financial contexts. Scientific texts, on the other hand, avoid appellations like million, billion and trillion and instead use scientific notation when writing about very large and very small numbers. Scientific notation represents numbers in powers of ten, so that 650 billion can be written as 650 × 10⁹ or as 6.50 × 10¹¹.

Find a detailed description of the rules and conventions of the English language in Antidote’s language guides.

Find out more

Numbers in words means expressing the given numerals in words or spellings. For example, the number 1000 in words is written as one thousand. We can represent all natural numbers in words on the basis of the place value of their digits, such as ones, tens, hundreds, thousands, and so on.

What are Number Names?

When numbers are expressed in words, we call them number names. Number names help us to learn and identify numbers easily.

• For example, 1 can be written and read in words as one, therefore, the number name for 1 is one.
• 2 is written and read in words as two.
• 3 is written in words as three.
• 4 is written and read in words as four.
• 5 is written and read in words as five.
• 6 is written and read in words as six.
• 7 is written and read in words as seven.
• 8 is written and read in words as eight.
• 9 is written and read in words as nine.
• 10 is written and read in words as ten.

With the help of number names from one to ten, we can write and read higher-value numbers in words.

Numbers in Words in English

To write numbers in words in English we use the place values (ones, tens, hundreds, thousands, lakhs, crores, and so on…) of each digit in the number. With the help of the Indian place value chart, it is easy to find the place value of each digit based on its position and the number can be written in words. Let us understand this with the help of an example.

Example: Write the given number in words: 23456789 according to the Indian place value chart and according to the International place value chart.

Solution:

According to the Indian place value system, 2,34,56,789 is written and read in words as two crores, thirty-four lakh, fifty-six thousand, seven hundred eighty-nine.

According to the International place value chart, 23,456,789 is written and read in words as twenty-three million, four hundred fifty-six thousand, seven hundred eighty-nine.

Number Names 1 to 100

Number names 1 to 100 can be read and understood using the pattern explained below. Observe the pattern to learn numbers in words from 1 to 100 along with their spellings. First let us start with number names from 1 to 20, followed by number names from 21 to 100.

Number Names 1 to 20

Given below is a chart showing number names from 1 to 20.

1 to 20 Spelling

‘1 to 20 spellings’ means that we need to write the number names from 1 to 20. So, whether we need to write ‘1 to 20 spellings’ or we are asked for ’11 to 20 spellings’, it means that we need to write their number names. The following chart shows the number names from 1 to 20.

Number Names 21 to 100

Observe the chart given below with number names from number 21 to 100 and learn the counting in words.

Numbers in Words in International System

The international system has different place value names for a certain position of a digit in a number. For example, the number 1,000,000 is read as 1 million in words in the international system, whereas, it is read as 10 lakhs in the Indian place value system. In the international system, different periods are formed to read and write large numbers easily. As per the International numeration system, the comma is placed in a number after the hundreds place and then placed after every three digits. The place values in the international system are Ones, Tens, Hundreds, Thousands, Ten Thousand, Hundred Thousands, Millions, and so on.

• 1 million = 1000 thousands
• 1 billion = 1000 millions

For example, the number 7,456,123 is written or read in words as seven million four hundred fifty-six thousand one hundred twenty-three in the international number system.

Rules to Write Number Names

There are certain rules that can be followed while writing the numbers in words. These rules are listed below in detail.

Rule 1: Understanding the place value system: The position of a number plays a very crucial role in writing a number in words. Let us understand how to differentiate between the place values based on the position of 1:

• 1 = ones place
• 10 = tens place
• 100 = hundreds place
• 1000 = thousands place

Rule 2: For numbers between 1-20 we can directly refer to the number names 1 to 20 chart to write their spellings. For example, the number name of 7 is seven, the number name of 15 is fifteen, and so on. After number 20 a generic series or pattern is followed.

Rule 3: The number names for multiples of 100 can be simply written by adding the word ‘hundred’ after the initial word. For example, the number name of 400 is four hundred, the number name for 500 is five hundred, and so on.

Rule 4: To write the number names of more than 2 digit numbers, we write the number in its expanded form. For example, 112 = 100 + 12, and 112 in words is written as one hundred twelve. The expanded form of 153 = 100 + 50 + 3 and 153 in words is written as One hundred fifty-three.

Tips to Learn Number Names

The following tips can be kept in mind to write numbers in words:

• The number names from 1 to 10 can be written directly because each number name is unique, as 1- one, 2-two, 3-three, and so on.
• The number names from 11 to 20 can also be written directly because each number name is unique, as 11 — eleven, 12-twelve, and so on.
• The numbers and spellings of the multiples of 10 can be written as 20- twenty, 30- thirty, 40- forty, 50- fifty, 60- sixty, 70- seventy, 80- eighty, 90- ninety.
• Now, after 20, starting from 21, we follow a different rule. The word form of 20 and 1 can be combined to write 21 as twenty-one, 22 as twenty-two, and so on. Similarly, we can write number names for 31, 41, 51, and so on.
• For large numbers write the number and their word form, like 100 — hundred, 1000 — thousand, and so on.
• The number 101 in words is written as one hundred one and 1001 is written as one thousand one and so on.

Observe the pattern which will help to write and read higher value numbers in words.

• 100 — Hundred
• 200 — Two-Hundred
• 300 — Three-Hundred
• 400 — Four-Hundred
• 500 — Five-Hundred
• 600 — Six-Hundred
• 700 — Seven-Hundred
• 800 — Eight-Hundred
• 900 — Nine-Hundred
• 1000 — One-Thousand or Thousand

Similarly,

• 2000 — Two thousand
• 5000 — Five thousand
• 10,000 — Ten Thousand
• 15,000 — Fifteen Thousand
• 16,000 — Sixteen thousand
• 20,000 — Twenty Thousand
• 25,000 — Twenty-Five Thousand
• 30,000 — Thirty Thousand
• 35,000 — Thirty-Five Thousand
• 40, 000 — Forty Thousand
• 45,000 — Forty-Five Thousand
• 100,000 — One hundred thousand (One Lakh)
• 200, 000 — Two hundred thousand (Two Lakhs)
• 300, 000 — Three hundred thousand (Three Lakhs)
• 400, 000 — Four hundred thousand (Four Lakhs)
• 500, 000 — Five hundred thousand (Five Lakhs)

Important Notes on Number Names

• Read the number from left to right.
• The number 40 in words is written as forty, not fourty.
• To write a number in words, first read the number and write the number name as you say it.

☛Related Articles

Check out these interesting articles to know more about Number Names and their related topics.

• Number names 1 to 10
• Number names 1 to 30
• Number names 1 to 40
• Number names 41 to 50

FAQs on Numbers in Words

What are Number Names in Math?

Number names in math are the infinite cardinal numbers starting from 1 to n written in their word form. To write number names we use the Indian place value system and the International place value system. For example, 798 is written as ‘seven hundred ninety-eight’.

How to Write Numbers in Words in International System?

In the International system of numeration, we use the place values as ones, tens, hundreds, thousands, ten thousand, hundred thousand, one million, ten million, hundred million, and so on, to write number names for large numbers. For example, 567,898 is written as ‘five hundred sixty-seven thousand eight hundred ninety-eight’.

☛ Check:

• Numbers in Words 51 to 60
• Numbers in Words 51 to 100
• Numbers in Words 91 to 100

How to Write 1100 in Words?

The number 1100 in words is written as One thousand one hundred.

☛ Number Names 1 to 50

How to Write Decimal Number Names?

Decimal number names can be written using the following steps. Let us write the number name for 25.578

• First, write the number name for the whole number part. Here, it will be Twenty-five
• Then, write the word ‘and’ for the decimal point. Here, it will be Twenty-five and.
• Now, write the number name for the decimal part, that is, the number to the right side of the decimal point. Here, it will be rewritten as twenty-five and five hundred seventy-eight thousandths. It should be noted that the decimal part is written using the decimal place value chart in which we use the place values like hundredths, thousandths and so on.

How to Write Number Names in International System?

In the international place-value system, we insert commas after every three digits from the right of the number. So while writing numbers in words we can check the place values and write numbers in words. For example, 37,824,500 is written in words as thirty-seven million eight hundred twenty-four thousand five hundred.

How to Write Numbers in Words?

To write a number in words, start from the left-most digit and write it according to its place value For example, 133 is read or written in words as one hundred thirty-three. By knowing the word form of numbers from 1 to 10 we can read and write the numbers easily. The word form of the first ten natural numbers is 1-one, 2-two, 3-three, 4-four, 5-five, 6-six, 7-seven, 8-eight, 9-nine, 10-ten.

☛ Also Read:

• Numbers in Words 100 to 200
• Numbers in Words 1 to 1000

How are Numbers in Words Useful in Real Life?

Numbers in words are useful in reading large numbers. If any document contains large numbers, the numbers in words help readers to read numbers correctly and quickly. While doing cheque payments, it is compulsory to write the numbers in figures as well as in words.

From Simple English Wikipedia, the free encyclopedia

Naming very large numbers is relatively easy. There are two main ways of naming a number: scientific notation and naming by grouping. For example, the number 500,000,000,000,000,000,000 can be called 5 x 10²⁰ in scientific notation since there are 20 zeros behind the 5. If the number is named by grouping, it is five hundred quintillion (American) or 500 trillion (European).

When large numbers have many different decimals in them, such as 642 500 000 000, naming them with scientific notation is about the same, but with one difference. Still counting the number of numbers after the first number (in this case, after the 6 there are 11 numbers) you need to include the ones that are not zero in the formula, but after a decimal point. So 642 500 000 000 will be 6.425 x 10¹¹. When naming by grouping, each group is the name of the group. With the same number, it would be said to be 642 billion, 500 million (US) or 642 milliard, 500 million (Eur).

Some examples[change | change source]

Forms of numbering[change | change source]

The American way or «Short form» for naming large numbers is different from the European way or «Long form» of naming large numbers. This is mainly because of American finance. Short form numbering is based on thousands and Long form is based on millions. Because of this, in Short form a billion is one thousand millions (10⁹) while in Long form it is one million millions (10¹²). The change in the United Kingdom to Short form numbering happened in 1974. Today, Short form is most commonly used in most English speaking countries.

Names for large numbers[change | change source]

There is also the number googol, which is a 1 with 100 zeros behind it (10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000), and the number googolplex, which is a 1 with a googol of zeros behind it, (10^{10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000}) (10¹⁰¹⁰⁰). And also the number googolplexian, 1 with a googolplex number of zeros behind it. Googolplexianplex, or googolplexianplexian are still theoretical numbers, but they might have some use in real life.

The name centillion was devised in the 19th century for the 100th «illion», being 10³⁰³ in short form and 10⁶⁰⁰ in long form.

[change | change source]

• Order of magnitude
• Lakh
• Crore

Other websites[change | change source]

• Big numbers
• Counting Really,REALLY,REALLY High
• Naming Large Numbers Archived 2022-08-11 at the Wayback Machine

Numbers In Words

This translator converts numbers into words (or numbers to letters, if that makes more sense). Write «1» in the box on the left, and «one» will appear on the right. It converts very large numbers into their word form — see if you can find the biggest! (Hint: You’ll need more than 1000 digits!!) I’m pretty sure this translator is the best numbers to words converter on the whole internet in terms of being able to convert craaazzy large numbers into words form. I didn’t really have any particular use case in mind when I made this generator, but hopefully you have some need for numbers in words format, and can use this to help solve your problem

Many people will likely know the number «googol» (after which the famous tech company «Google» is named) — it’s the digit «1» with one hundred zeros after it — a number which is dozens of orders of magnitude greater than the number of atoms in the visible universe. It’s ridiculously big. But who would have know that the named numbers go hundreds or orders of magnitude higher than this?! If you can find the highest named number by typing digits in the box, post it in the comments!

It’s worth noting that there are often a few different possible names which can be used for the same number. For example, a googol can also be called ten duotrigintillion, ten thousand sexdecillion, or ten sexdecilliard. Since these numbers are very rarely used, there is not standard or governing body and so it’s a bit of a wild west. In trying to create a useful numbers ot words translator I figured I’d just try to translate each number into the most commonly used name, and one that is consistent with the rest of the number names.

To slightly complicate the issue further, there are multiple possible spellings of the same name. So for example, we can spell the aforementioned number as duotrigintillion or dotrigintillion. Number names, and number spelling are fairly consistent for the first few dozen orders of magnitude after the number one, but after that, they begin to diverge.

If you’re interested in these nomenclature issues, and the history behind them, have a look at this wiki article and also this one.

It’s interesting that standard «dictionary» words for very large numbers didn’t appear in English until around the 1400s. The words bymillion and trimillion appeared for the first time in a 1475 manuscript of Jehan Adam.

Some languages have a very small emphasis on numbers. For example, the Pirahã people are thought to have no numbers in their language at all. They appear to only have words for «more» and «few». They also have no grammatical distiction between singular and plural — for example, the word for «people» is the same as the word for «person».

All thanks to Flambino for providing the script that runs this translator! I also had to use big.js by @MikeMcl, since the numbers are far too big for javascript to handle with it’s built-in types. It turns out that (when you want to get the names of big numbers), writing working code to translate numbers into words isn’t the easiest of tasks! Huge thanks to these two guys for making my life a tonne easier.

If you’ve got any suggestions, or if there’s any errors in the word-form of the numbers, please let me know! Thanks

This table shows how we can describe some groups of numbers as they increase in size:

In the past, there was a distinction between the American billion (1,000,000,000) and the British or European billion (1,000,000,000,000 – now the trillion), but in modern use the vast majority of the English speaking world has adopted the American version.

Saying a large number

We say large numbers by listing the numbers in order of size, biggest first. When reading a single number, all the number labels should be singular, for example 10,400 is ten thousand four hundred and not ten thousands four hundreds.

We describe three digit numbers in hundreds, then tens. Generally, in British English we usually connect large numbers with double or single digit figures with and, but in American English and is not used. Note that hundreds, thousands and millions are not connected to each other with and, though.

For example:

• 345 is three hundred and forty-five (three hundred forty five in American).
• 59,321 is fifty nine thousand, three hundred and twenty one. (not fifty nine thousand and three hundred…)

You can then describe large numbers with a series of different figures, grouping numbers in hundreds and tens, starting with the biggest number. So we describe hundreds/tens of millions, then thousands, then hundreds:

• 1,345,612 = one million, three hundred and forty five thousand, six hundred and twelve
• 153,200 = one hundred and fifty three thousand, two hundred

In the…

When we want to say where a number generally lies, in the above groups, we can say it is in the… For example, 14 is in the teens, 325 is in the hundreds. For tens and hundreds of larger numbers (thousands, millions), we say in the tens (or hundreds) of… So: hundreds of thousands and tens of millions.

Hundreds and thousands

Often it is easier to describe four figure numbers in hundreds instead of thousands. This is perfectly acceptable. For example, 1500 might be described as fifteen hundred, instead of one thousand five hundred (or one and a half thousand), because it is simpler to say.

Numbers as adjectives

All of these numbers can be referred to by the number of figures they contain, with plurals, for instance a number is in single figures (3), double figures (20) or quadruple figures (1,000). However, when we use the figure size of the number to describe a noun (such as a salary, price or to refer to a number itself) we simply use number + figure + noun. For example, a six-figure salary, a four-figure discount.

Saying Thousands in Units of Ten (For Years and More)

One exception to the patterns above that you are likely to hear is when English-speakers say a number in thousands as a pair of two-digit numbers, for example 1912 as nineteen twelve.

This is mostly used when giving the name of years, and in fact is the more common way to do this – when pronouncing a year as a number, we usually break it into two. It also applies to years in the hundreds. Here are some examples:

• 1066 – ten sixty six
• 1254 – twelve fifty four
• 831- eight thirty one

Note, however, for the first century of a millennium we often go back to normal number conventions:

• 2005 – two thousand and five

There are some other exceptions where we break thousands down this way, usually when the number isn’t necessarily referring to a quantity, for example if it’s an assigned number to name something. For example, screen resolutions (1080px, though referring to a number of pixels, can be said as ten eighty, as it is part of a naming convention).

Alternative names for number groups

There are many informal alternative names for groups of numbers that can be used to simplify names. Beware you may not always be understood using these.

Naming large numbers exercise

Practise reading these numbers out loud:

1. 4,567
2. 367
3. 98,745
4. 120,005
5. 5,000
6. 34,230
7. 873,120
8. 10,043
9. 7,340,200
10. 54,500
11. 24
12. 4,567,090
13. 67,000
14. 92,000,031
15. 1,000,010,000,023

It’s:

one hundred quintillion

or:

a hundred quintillion

The words for very large numbers

If you’re wondering how to form other huge numbers like this, here’s the pattern:

A thousand thousands is a million: 1,000,000.

A thousand millions is a billion: 1,000,000,000.

A thousand billions is a trillion: 1,000,000,000,000.

A thousand trillions is a quadrillion: 1,000,000,000,000,000.

A thousand quadrillions is a quintillion: 1,000,000,000,000,000,000.

A thousand quintillions is a sextillion: 1,000,000,000,000,000,000,000.

And so on. The part before -illion is the Latin prefix for the number of times you went through the process of multiplying by a thousand. So, you can continue to septillion, octillion, nonillion, decillion, undecillion, duodecillion, and so on forever.

Within the scale defined by one of these huge units, you multiply by a number from 1 to 999 in the usual manner, by putting the multiplier ahead of the unit, and you add smaller numbers by putting them after the unit, in the same manner as for thousands:

215,002 is «two hundred fifteen thousand and two».

215,000,000,000,000,000,002 is «two hundred fifteen quintillion and two».

The usual customs for «hundred» apply:

123,456,100,000,000,000,000 is «a hundred and twenty-three quintillion four hundred and fifty-six quadrillion one hundred trillion» or «one hundred twenty-three quintillion four hundred fifty-six quadrillion one hundred trillion», or other variations, the same as for hundreds of thousands.

Exponents

When you work with these numbers on a daily basis like I do,* you soon find that they become rather unwieldy, at least until you get up to a centillion pengős.^† In the physical sciences, if not in economics, one normally writes and pronounces these numbers using powers of ten. A quintillion is 10¹⁸, which you pronounce like this:

Ten to the eighteenth power.

Ten to the eighteenth. [for short]

Ten to the eighteen. [even shorter]

In scientific notation, you always choose an exponent large enough so the multiplier has one digit to the left of the decimal point, like this: 2.15 ⨉ 10¹⁷. That’s pronounced:

215 quadrillion is «two point one five times ten to the seventeenth.»

If the multiplier is exactly 1, you can omit it in speech. So:

100,000,000,000,000,000,000 is a hundred quintillion, or ten to the twentieth power.

Does anybody really say “quintillion”?

“Quintillion” is an obscure word, though not much more obscure than “quadrillion”, which often gets totted out when government budgets and monetary inflation make news. A fluent speaker can guess it from the pattern of “billion”, “trillion”, etc. Here are a few samples to illustrate typical contexts where people really use it to communicate (that is, not just to talk about words for huge numbers, which might be its most frequent use):

Government budgets: “For instance, the expected state income for oil and gas was reduced from 99,591 quintillion rupiah (about 9 billion euro) to 72,930 quintillion rupiah.”

Pop science: “The quantum simulation of the 69 electrons must specify all possible 600 quintillion states simultaneously.”

Bizarre religious tracts: “When this universe collapses in 70–100 billion years from now Jesus has given Kush a Quintillion universes like the one we live in as its territory forever. That is our promised land.”

Very low probabilities resulting from calculations: “Using FBI statistics, Schoon calculated that the DNA profile at issue would be found in 1 in 2.7 quintillion African-Americans, 1 in 52 quintillion Caucasians and 1 in 260 quintillion Hispanic unrelated individuals.” (This is from a U.S. appellate court opinion.)

Often when “quintillion” appears in print, it’s accompanied with an explanation. Usually when I’ve seen it used without explanation, it’s been in the context of economics. Presumably that crowd is well accustomed to talking about vast sums of money.

Long scale and short scale

Notice that in the Indonesian budget described above, “quintillion” occurs with multipliers greater than 999. That suggests that they’re following the “long scale” system, in which each successive ‑illion is a million times greater than the previous one. That’s an older usage, now nonstandard in English in all countries, but some people still use it, especially in countries like Indonesia where the dominant language follows the long-scale system. See kasperd’s answer for more about that.

*_{Just kidding.}

^†_{When you get up to a centillion pengős, you’re talkin’ real money.}

February 18, 2013 · 4:50 pm

Numbers in expanded word form means writing numbers from 100
to 199 in figures, in words and in expanded form of the numbers.

Numbers in figure                 Numbers in words          Numbers in expanded form

          100                            One hundred                            100 + 00 + 0

          101                          One hundred one                        100 + 00 + 1

          102                          One hundred two                        100 + 00 + 2

          103                          One hundred three                      100 + 00 + 3

          104                          One hundred four                        100 + 00 + 4

          105                          One hundred five                        100 + 00 + 5

          106                          One hundred six                          100 + 00 + 6

          107                          One hundred seven                     100 + 00 + 7

          108                          One hundred eight                      100 + 00 + 8

          109                          One hundred nine                       100 + 00 + 9

          110                          One hundred ten                        100 + 10 + 0

Writing numbers from 111 to 120 numbers in expanded word
form.

Numbers in figure             Numbers in words                     Numbers in expanded form

          111                          One hundred eleven                    100 + 10 + 1

          112                          One hundred twelve                    100 + 10 + 2

          113                          One hundred thirteen                  100 + 10 + 3

          114                          One hundred fourteen                 100 + 10 + 4

          115                          One hundred fifteen                    100 + 10 + 5

          116                          One hundred sixteen                   100 + 10 + 6

          117                          One hundred seventeen               100 + 10 + 7  

          118                          One hundred eighteen                 100 + 10 + 8

          119                          One hundred nineteen                 100 + 10 + 9

          120                           One hundred twenty                   100 + 20 + 0

Writing numbers from 121 to 130 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          121                    One hundred twenty-one                   100 + 20 + 1      

          122                    One hundred twenty-two                   100 + 20 + 2

          123                    One hundred twenty-three                 100 + 20 + 3

          124                    One hundred twenty-four                   100 + 20 + 4

          125                    One hundred twenty-five                   100 + 20 + 5

          126                    One hundred twenty-six                    100 + 20 + 6

          127                    One hundred twenty-seven                100 + 20 + 7

          128                    One hundred twenty-eight                 100 + 20 + 8

          129                    One hundred twenty-nine                  100 + 20 + 9

          130                    One hundred thirty                           100 + 30 + 0

Writing numbers from 131 to 140 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          131                    One hundred thirty-one                      100 + 30 + 1

          132                    One hundred thirty-two                      100 + 30 + 2

          133                    One hundred thirty-three                    100 + 30 + 3

          134                    One hundred thirty-four                      100 + 30 + 4

          135                    One hundred thirty-five                      100 + 30 + 5

          136                    One hundred thirty-six                       100 + 30 + 6

          137                    One hundred thirty-seven                   100 + 30 + 7

          138                    One hundred thirty-eight                    100 + 30 + 8

          139                    One hundred thirty-nine                     100 + 30 + 9

          140                    One hundred forty                             100 + 40 + 0

Writing numbers from 141 to 160 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          141                    One hundred forty-one                        100 + 40 + 1

          142                    One hundred forty-two                        100 + 40 + 2

          143                    One hundred forty-three                      100 + 40 + 3

          144                    One hundred forty-four                        100 + 40 + 4

          145                    One hundred forty-five                        100 + 40 + 5

          146                    One hundred forty-six                         100 + 40 + 6

          150                    One hundred fifty                               100 + 50 + 0

          151                    One hundred fifty-one                         100 + 50 + 1 

          152                    One hundred fifty-two                         100 + 50 + 2

          153                    One hundred fifty-three                       100 + 50 + 3

          154                    One hundred fifty-four                         100 + 50 + 4

          155                    One hundred fifty-five                         100 + 50 + 5

          156                    One hundred fifty-six                          100 + 50 + 6

          157                    One hundred fifty-seven                      100 + 50 + 7

          158                    One hundred fifty-eight                       100 + 50 + 8

          159                    One hundred fifty-nine                        100 + 50 + 9

          160                    One hundred sixty                              100 + 60 + 0

Writing numbers from 161 to 180 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          161                    One hundred sixty-one                 100 + 60 + 0

          162                    One hundred sixty-two                 100 + 60 + 0

          163                    One hundred sixty-three               100 + 60 + 0

          164                    One hundred sixty-four                 100 + 60 + 0

          165                    One hundred sixty-five                  100 + 60 + 0

          166                    One hundred sixty-six                   100 + 60 + 0

          167                    One hundred sixty-seven               100 + 60 + 0

          168                    One hundred sixty-eight                100 + 60 + 0

          169                    One hundred sixty-nine                 100 + 60 + 0

          170                    One hundred seventy                    100 + 70 + 0

          171                    One hundred seventy-one              100 + 70 + 1

          172                    One hundred seventy-two              100 + 70 + 2

          173                    One hundred seventy-three            100 + 70 + 3

          174                    One hundred seventy-four              100 + 70 + 4

          175                    One hundred seventy-five              100 + 70 + 5

          176                    One hundred seventy-six                100 + 70 + 6

          177                    One hundred seventy-seven           100 + 70 + 7

          178                    One hundred seventy-eight            100 + 70 + 8

          179                    One hundred seventy-nine             100 + 70 + 9

          180                    One hundred eighty                       100 + 80 + 0

Writing numbers from 181 to 190 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          181                    One hundred eighty-one                   100 + 80 + 1

          182                    One hundred eighty-two                   100 + 80 + 2

          183                    One hundred eighty-three                 100 + 80 + 3

          184                    One hundred eighty-four                   100 + 80 + 4

          185                    One hundred eighty-five                   100 + 80 + 5

          186                    One hundred eighty-six                    100 + 80 + 6

          187                    One hundred eighty-seven                100 + 80 + 7

          188                    One hundred eighty-eight                 100 + 80 + 8

          189                    One hundred eighty-nine                  100 + 80 + 9

          190                    One hundred ninety                         100 + 90 + 0

Writing numbers from 191 to 199 numbers in expanded word
form.

Numbers in figure               Numbers in words            Numbers in expanded form

          191                    One hundred ninety-one                  100 + 90 +1

          192                    One hundred ninety-two                  100 + 90 + 2

          193                    One hundred ninety-three                100 + 90 + 3

          194                    One hundred ninety-four                 100 + 90 + 4

          195                    One hundred ninety-five                  100 + 90 + 5

          196                    One hundred ninety-six                   100 + 90 + 6

          197                    One hundred ninety-seven               100 + 90 + 7

          198                    One hundred ninety-eight                100 + 90 + 8

          199                    One hundred ninety-nine                 100 + 90 + 9

Thus, we have learned numbers in expanded word form from 100 to 199.

2nd Grade Math Practice

From Numbers in Expanded Word Form to HOME PAGE

Presentation on theme: «How to read large numbers»— Presentation transcript:

1

How to read large numbers
Read the numbers before the comma as if you were reading in the one’s column. Say the period you are in when you get to the comma except for the one’s period. Billion Million Thousand Ones 367,671,690,492

2

Remember that each period has three place values within the period
Billions Millions Thousands Units Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones 367,671,690,492

3

This will be the same within each period.
Try to think of each period as a house and each place as the kids in the house. Hundreds as Big Brother Tens as Middle Brother Ones as Little Sister This will be the same within each period.

4

Three Forms to Write a Number
Standard Form: in numbers 7,528,682,001 Word Form: in words Seven billion, five hundred twenty-eight million, six hundred eighty-two thousand, one Expanded Form: sum of the digits values. 7,000,000, ,000, ,000, ,000, , , ,

5

What is the expanded form of?
56,803 50, ,000 +

6

What is the standard form of?
6, 6,823

7

4,367 What is the word form of? four thousand, three hundred
sixty-seven

8

4,371,024 Read this number four million, three hundred
seventy-one thousand, twenty-four

9

What place value is the 8 in this number?
4,829,905 Hundred thousands

10

What place value is the 2 in this number?
4,829,105 Ten thousands

11

What is this number in standard form?
Ninety thousand, four hundred eight 90,408

12

Compare and Order Whole Numbers
545,524 540,828 529,121 5,282 Line up the places. Line up the decimal points. Add zeros , only if necessary 545,524 540,828 529,121 5,282 Add zeros , only if necessary Least to Greatest 5,282 529,121 540,828 545,524 Order by place value. Least to Greatest OR Greatest to Least Compare by place value. Use signs to compare < , > , = 545,524 > 5,282