Rounding Decimals

Front

What is rounding?

Back

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

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. If the decimal is 0.5 or higher, round up; if it's less than 0.5, round down.

Front

Round 829.51 to the nearest whole number.

Back

830

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 3.572 to the nearest tenth.

Back

3.6

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

What is the rule for rounding up?

Back

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

Front

What is the rule for rounding down?

Back

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

Front

Round 47.941 to the nearest one.

Back

48