Rounding Decimals

Front

What is rounding?

Back

Rounding is the process of adjusting the digits of a number to make it simpler 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 integer.

Front

How do you round 75.109 to the nearest whole number?

Back

75.109 rounds to 75 because the digit after the decimal (1) is less than 5.

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means adjusting a decimal number to one digit after the decimal point.

Front

How do you round 47.941 to the nearest tenth?

Back

47.941 rounds to 47.9 because the digit after the first decimal (9) is 4, which does not round up.

Front

How do you round 23.542 to the nearest tenth?

Back

23.542 rounds to 23.5 because the digit after the first decimal (5) is 4, which does not round up.

Front

What does it mean to round to the nearest hundredth?

Back

Rounding to the nearest hundredth means adjusting a decimal number to two digits after the decimal point.

Front

How do you round 72.178 to the nearest hundredth?

Back

72.178 rounds to 72.18 because the digit after the second decimal (8) is 7, which rounds up.

Front

How do you round 9.029 to the nearest hundredth?

Back

9.029 rounds to 9.03 because the digit after the second decimal (9) is 9, which rounds up.

Front

What is the rule for rounding up?

Back

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