Rounding Decimals

Front

What is rounding?

Back

Rounding is the process of adjusting the digits of 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 1.49 to the nearest whole number.

Back

1

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. Look at the hundredths place to decide whether to round up or down.

Front

Round 2.76 to the nearest tenth.

Back

2.8

Front

What is the hundredths place in a decimal number?

Back

The hundredths place is the second digit to the right of the decimal point.

Front

Round 3.456 to the nearest hundredth.

Back

3.46

Front

What is the rule for rounding up?

Back

If the digit in the place value immediately to the right of the rounding place is 5 or greater, round up by adding 1 to the rounding place.

Front

Round 4.85 to the nearest whole number.

Back

5

Front

What is the rule for rounding down?

Back

If the digit in the place value immediately to the right of the rounding place is less than 5, round down by keeping the rounding place the same.