Rounding Decimals

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, while keeping its value close to what it was.

Front

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

Back

Rounding to the nearest whole number means adjusting a decimal number to the closest whole number. If the decimal is 0.5 or higher, round up; if it's less than 0.5, round down.

Front

Round 1.82 to the nearest whole number.

Back

2

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means adjusting a decimal number to one decimal place. Look at the hundredths place to decide whether to round up or down.

Front

Round 23.542 to the nearest tenth.

Back

23.5

Front

What does it mean to round to the nearest hundredth?

Back

Rounding to the nearest hundredth means adjusting a decimal number to two decimal places. Look at the thousandths place to decide whether to round up or down.

Front

Round 9.029 to the nearest hundredth.

Back

9.03

Front

Round 72.178 to the nearest hundredth.

Back

72.18

Front

Round 43.827 to the nearest hundredth.

Back

43.83

Front

What is the rule for rounding up?

Back

If the digit to the right of the place you are rounding to is 5 or greater, round up.