Rounding Decimals Flashcard

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler or to make it easier to work with, typically by reducing the number of digits while keeping the value close to the original number.

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 is less than 0.5, round down.

Front

How do you round a number to the nearest tenth?

Back

To round a number to the nearest tenth, 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 rule for rounding to the nearest hundredth?

Back

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

Front

What is the significance of the digit in the tenths place when rounding?

Back

The digit in the tenths place determines whether to round up or down based on the value of the digit in the hundredths place.

Front

What is the significance of the digit in the hundredths place when rounding?

Back

The digit in the hundredths place is used to decide how to round the number in the tenths place: if it is 5 or greater, round up; if it is less than 5, round down.

Front

How would you round the number 0.43 to the nearest whole number?

Back

0.43 rounds down to 0 because it is less than 0.5.

Front

How would you round the number 6.02 to the nearest tenth?

Back

6.02 rounds down to 6.0 because the hundredths place (2) is less than 5.

Front

How would you round the number 5.49 to the nearest whole number?

Back

5.49 rounds down to 5 because it is less than 5.5.

Front

How would you round the number 0.202 to the nearest hundredth?

Back

0.202 rounds to 0.20 because the thousandths place (2) is less than 5.