Add, Subtract, & Multiply Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

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 product of 1.28 and 9.4?

Back

12.032

Front

What is the product of 3.6 and 1.97?

Back

7.092

Front

If Rebecca runs at 4.5 miles per hour for 3.2 hours, how far does she run?

Back

14.4 miles

Front

What is the sum of 45.6 and 12.89?

Back

58.49

Front

What is the result of adding 0.75 and 0.25?

Back

1.00

Front

What is the result of subtracting 0.5 from 1.5?

Back

1.00