Add, Subtract, Multiply, and Divide Decimals

Front

What is the sum of 860.4 and 4.04?

Back

864.44

Front

What is the sum of 91.6 and 101.2?

Back

192.8

Front

What is the sum of 7.9 and 18.72?

Back

26.62

Front

What is 0.991 minus 0.45?

Back

0.541

Front

The Bell family traveled and drove 10.9 hours; then 8.6 hours; then 12.4 hours. What is the sum?

Back

31.9 hours

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 definition of subtraction in decimals?

Back

Subtraction in decimals involves taking one decimal number away from another.

Front

How do you multiply 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 definition of division in decimals?

Back

Division in decimals involves dividing one decimal number by another.