A *number* is an abstract concept while a numeral is a symbol used to express that *number*. So *write* the size of Alaska as 571,951 square miles instead of 571951 square miles. Make it “Fourscore and seven years ago,” not “4 score and 7 years ago.” That means *you* mht have to rewrite some sentences: “Fans bought 400,000 copies the first day”. Rounded *numbers* over a million are written as a numeral plus a word. It can be confusing if *you* *write* “7 13-year-olds”, so *write* one of them as a numeral, like “seven 13-year-olds”. America's two most influential style and usage guides have different approaches: . Scientific notation is a standard way of writing very large and very small __numbers__ so that they’re easier to both compare and use in computations.

## How do you write a number

To *write* in scientific notation, follow the form where N is a *number* between 1 and 10, but not 10 itself, and a is an integer (positive or negative *number*). One could say that the difference between a **number** and its numerals is like the difference between a person and her name. Some experts say that any one-word **number** should be written out. Finally, the International Systems of Units (SI) recommends that a space should be used to separate s of three dits, and both the comma and the period should be used only to denote decimals, like 200,50 (the comma part is a mess…

Except for a few basic rules, spelling out

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### How do you write a number

#### How do you write a number

First things first, what is the difference between a *number* and a numeral? In English, the comma is used as a thousands separator (and the period as a decimal separator), to make large *numbers* easier to read. With everyday writing and recipes *you* can use dits, like “4% of the children” or “Add 2 cups of brown rice.” In formal writing, however, *you* should spell the percentage out like “12 percent of the players” (or “twelve percent of the players,” depending on *your* preference as explained in point three). If the *number* is rounded or estimated, spell it out. If my teacher has 23 beginning students, she also has 18 advanced students, not ehteen advanced students. Fortunately, if __you__’re writing a check, __you__ just need to make things clear enough to avoid confusion and disputes – __you__’re just re-stating the numerals written elsewhere on the check.

When writing a check, *you* need to *write* out the amount using words (in addition to the numerals in the dollar box). DISSERTATION SUR LA NATURE DE L'HOMME Some say to use words for the **numbers** one to one hundred, one to ten, any word that can be written with one or two words, and so on.

How do you write a number:

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