Question

Why do not we put comma while written hundreds​

Answer 1

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Because it is unnecessary to label each section of numbers like we do with integers. For integers, we label them by thousands, millions, and so on, because they get very big.

Answer 2

Answer:

In English, we use commas in numbers greater than 999 to split the number and make it clearer. We use a comma every third digit from the right.

More than 50,000 people turned up to protest.

The comma every third digit is sometimes known as a “thousands-separator.” Make sure you don’t include a space on either side of this comma.

Correct:

We will walk 10,000 miles.

Incorrect:

We will walk 10000 miles.

We will walk 10, 000 miles.

We will walk 10 , 000 miles.

We will walk 10 ,000 miles.

When a number uses a decimal point, we never place commas to the right of the decimal point. Some people like to use thin spaces going from left to right instead.

Correct:

The value of Pi is 3.14159 to five decimal places.

The value of Pi is 3.14 159 to five decimal places.

Step-by-step explanation:

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