Adding, Subtracting, Multiplying, and Dividing 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.

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

What is the process for subtracting decimals?

Back

To subtract decimals, align the numbers by the decimal point, subtract as you would whole numbers, and place 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 rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, and do the same with the dividend. Then divide as you would with whole numbers.

Front

Calculate: 2.49 + 2.25

Back

4.74

Front

Calculate: 5.75 - 2.50

Back

3.25

Front

Calculate: 3.6 x 4.2

Back

15.12

Front

Calculate: 12.6 ÷ 0.3

Back

42

Front

What is the value of 0.75 in fraction form?

Back

0.75 = 3/4