Add, Subtract and Multiply Decimals

Front

What is the sum of 7.9 and 18.72?

Back

26.62

Front

What is 0.4 multiplied by 7?

Back

2.8

Front

If the Bell family drove for 10.9 hours, 8.6 hours, and 12.4 hours, what is the total driving time?

Back

31.9 hours

Front

What is 5.257 minus 2.393?

Back

2.864

Front

Daniel had $6.78. His grandmother gave him $3.14. How much money does Daniel have now?

Back

$9.92

Front

What is the definition of a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point.

Front

How do you add decimals?

Back

Align the decimal points and add as you would whole numbers, then place the decimal point in the sum.

Front

What is the process for subtracting decimals?

Back

Align the decimal points, subtract as you would whole numbers, and place the decimal point in the difference.

Front

What is the rule for multiplying decimals?

Back

Multiply as if they are whole numbers, then count the total number of decimal places in both factors and place the decimal in the product.

Front

What is the value of 0.5 + 0.25?

Back

0.75