Rounding Decimals

Front

What is rounding in mathematics?

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. It often involves increasing or decreasing the number to the nearest specified place 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 .5 or higher, round up; if it is less than .5, round down.

Front

How do you round a decimal to the nearest tenths place?

Back

To round a decimal to the nearest tenths place, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the rounding rule for numbers ending in 4 or less?

Back

If a number ends in 4 or less, you let it rest, meaning you do not increase the last digit you are rounding.

Front

What is the rounding rule for numbers ending in 5 or more?

Back

If a number ends in 5 or more, you round up, meaning you increase the last digit you are rounding by one.

Front

Round the decimal 3.723 to the nearest whole number.

Back

4

Front

Round the decimal 5.67 to the nearest tenths place.

Back

5.7

Front

Round the decimal 29.711 to the nearest whole number.

Back

30

Front

Round the decimal 17.429 to the nearest whole number.

Back

17

Front

What is the significance of the place value when rounding?

Back

The place value determines which digit you look at to decide whether to round up or down. It is essential to identify the correct place value to apply the rounding rules accurately.