Add, Subtract, Multiply 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 product of 0.5 and 0.2?

Back

0.1

Front

What is the sum of 1.5 and 2.3?

Back

3.8

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 numbers and place the decimal point in the product accordingly.

Front

What is 7.9 + 18.72?

Back

26.62

Front

What is 5.257 - 2.393?

Back

2.864

Front

What is the sum of 33.21 and 6.96?

Back

40.17

Front

What is 12.5 - 4.3?

Back

8.2