Adding and subtracting decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

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

What is the value of 0.5 + 0.25?

Back

0.75

Front

What is the value of 1.2 - 0.7?

Back

0.5

Front

If Kelly has $20 and spends $2.15, how much does she have left?

Back

$17.85

Front

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

Back

31.9 hours

Front

Annie buys shoes for $47.82 and a top for $13.36. If she pays with $100, how much change does she get?

Back

$38.82

Front

What is 7.9 - 3.47?

Back

4.43

Front

Paige grew 4.62 cm in the first year and 7.7 cm in the second year. How much did she grow altogether?

Back

12.32 cm