Add, Subtract and Multiply 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 1/2.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

What is the value of 5.0 + 2.63?

Back

The value is 7.63.

Front

What is the value of 40.95 - 4.0?

Back

The value is 36.95.

Front

What is the value of 6.0 x 93.02?

Back

The value is 558.12.

Front

What is the value of 7.0 + 66.715?

Back

The value is 73.715.

Front

What is the value of 3.0 x 145.04?

Back

The value is 435.12.

Front

What is the place value of 5 in 0.345?

Back

The place value of 5 in 0.345 is in the hundredths place.