Rounding Decimals

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 whole number or decimal place.

Front

What does it mean to round to the nearest whole number?

Back

Rounding to the nearest whole number means looking at the decimal part of a number and deciding whether to round up or down to the closest whole number.

Front

What is the rule for rounding up?

Back

If the decimal part is 0.5 or greater, round up to the next whole number.

Front

What is the rule for rounding down?

Back

If the decimal part is less than 0.5, round down to the previous whole number.

Front

How do you round 12.51 to the nearest whole number?

Back

12.51 rounds to 13 because the decimal part (0.51) is greater than 0.5.

Front

How do you round 11.23 to the nearest whole number?

Back

11.23 rounds to 11 because the decimal part (0.23) is less than 0.5.

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means looking at the hundredths place to decide whether to round the tenths place up or down.

Front

How do you round 7.86 to the nearest tenth?

Back

7.86 rounds to 7.9 because the hundredths place (6) is greater than 5.

Front

What is the nearest tenth of 16.802?

Back

16.802 rounds to 16.8 because the hundredths place (0) is less than 5.

Front

How do you round 9.715 to the nearest hundredth?

Back

9.715 rounds to 9.72 because the thousandths place (5) is equal to 5, so we round up.