Operations Decimals and Fractions

Multiply Decimals

*1 decimal place.

*10th place.

3 x 0.2 =

• 6

• 0.6

• 0.06

• 0.006

Multiply Decimals

*2 decimal places

*100th place

3 x 0.02 =

• 6

• 0.6

• 0.06

• 0.006

Multiply Decimals

*1 decimal place.

*tenths place.

3 x 0.3 =

• 9

• 0.9

• 0.09

• 0.009

Multiply Decimals

*2 decimal places.

*hundredths place.

3 x 0.03 =

• 9

• 0.9

• 0.09

• 0.009

Divide 12.4 by 2.

• 6.2

• 6.0

• 5.8

• 7.2

Answer explanation

To divide 12.4 by 2, you get 6.2. Therefore, the correct answer is 6.2.

Subtract 6.5 from 10.2.

• 3.2

• 3.7

• 4.2

• 3.8

Answer explanation

To subtract 6.5 from 10.2, write the numbers vertically lining up the decimal points then subtract. When you bring down the decimal point, you get 3.7. Therefore, the correct answer is 3.7.

Multiply 2.5 by 3.4.

• 8.5

• 7.5

• 8.0

• 6.5

Answer explanation

To multiply 2.5 by 3.4, multiply the two numbers together, ignoring the decimal points: 25 * 34 = 850. Looking at the original numbers with the decimal points, you should see a total of two decimal place values between both numbers. Add in two decimal place values into 850 starting from the right to get 8.5 (8.50 with the zero, but the zero is not needed.)

Multiply Decimals

2 x 0.4 =

• 8

• 0.8

• 0.08

• 0.008

Multiply Decimals

2 x 0.04 =

• 8

• 0.8

• 0.08

• 0.008

Multiply Decimals

5 x 0.3 =

• 15

• 1.5

• 0.15

• 0.015