| Question | Answer |
| Rounding | Making numbers easier to read & easier to use |
| How do you round whole numbers? | You must know the place value of every digit in a whole number |
| What are used to separate digits into groups of three? | Commas. Commas are usually used in numbers with five digits or more. Four digit numbers can use a comma or not |
| How do you read a large number? | Read the first group of digits before the comma |
| What are the names of the commas? | Trillion, billion, million, thousand |
| What do you not say between numbers? | And |
| What are hyphens normally used for? | Writing numbers & in writing fractions when written in words |
| What are zeros sometimes used for? | To fill up a three-placed period |
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