Operations With Decimals Word Problems

• 190

• 1.9

• 19

• .19

?

• 3

• 30

• .3

• .03

?

• 7875

• 78.75

• 7.875

• 7787.5

?

• .04

• .4

• 40

• 4

Tony earned $12.50 for mowing his neighbors lawn. Jason earned five times as much by painting his neighbors garage. Phil earned $7.55 less than Jason by chopping firewood for his neighbor. How much did Phil earn?

• $54.95

• $70.05

• $62.50

• $72.25

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.)

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.

??

• 29.64

• 296.40

• 2.964

• .2964

• $287.17

• $325.00

• $32.50

• $3.25