Rounding Review

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, usually to the nearest ten, hundred, or thousand.

Front

What does it mean to round to the nearest hundred?

Back

Rounding to the nearest hundred means finding the closest multiple of 100 to a given number.

Front

What is a benchmark number?

Back

A benchmark number is a friendly number that is easy to work with, often used for rounding.

Front

If a number is 345, to which hundred does it round?

Back

345 rounds to 300 when rounding to the nearest hundred.

Front

If a number is 398, to which hundred does it round?

Back

398 rounds to 400 when rounding to the nearest hundred.

Front

What is the rule for rounding up?

Back

If the last digit is 5 or more, round up to the next hundred.

Front

What is the rule for rounding down?

Back

If the last digit is 4 or less, round down to the previous hundred.

Front

Which number does NOT round to 400: 409, 445, 345, or 398?

Back

345 does NOT round to 400.

Front

Which two benchmark numbers is 578 between?

Back

578 is between 500 and 600.

Front

Which number does NOT round to 700: 709, 745, 754, or 698?

Back

754 does NOT round to 700.