Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of the fraction 5/10.

Front

How do you multiply a decimal by 10?

Back

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. For example, rounding 4.3 to the nearest whole number gives 4.

Front

How do you round a decimal to the nearest whole number?

Back

Look at the digit to the right of the decimal point. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What is the sum of two decimals?

Back

Front

How do you subtract a decimal from a whole number?

Back

Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means adjusting a number to the closest multiple of ten. For example, rounding 908 to the nearest ten gives 910.

Front

Back

Front

What is the difference between 5 and 2.391?

Back

Front

How do you add decimals?

Back

To add decimals, align the decimal points and add each column as you would with whole numbers, carrying over if necessary.