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 with 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 with whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the sum of 7.9 and 18.72?

Back

26.62

Front

What is 7.9 minus 3.47?

Back

4.43

Front

If a family traveled for 10.9 hours, 8.6 hours, and 12.4 hours, what is the total travel time?

Back

31.9 hours

Front

If Ned ran 9.41 kilometers in a relay race that was 22.01 kilometers long, how far did Sarah run?

Back

12.6 kilometers

Front

What is the difference between 11.37 and 6.94?

Back

4.43

Front

What is 5.5 + 2.75?

Back

8.25

Front

What is 10.0 - 4.5?

Back

5.5