Add, Subtract, Multiply, and Divide Decimals

Addition

100

5.6 + 3.3

8.9

200

13.7 + 6.80

20.50

300

26.075 + 3.63 =

29.705

400

473.62 + 21.897 =

495.517

500

576 + 8.7431 =

584.7431

Subtraction

100

6.3 - 2.1 =

4.2

200

17.4 - 7.9 =

9.5

300

136.7 - 21.54 =

115.16

400

20.02 - 4.6 =

15.42

500

300 - 7.465 =

292.535

Multiplication

100

3.7 * .6 =

2.22

200

28.9 * 3.2 =

92.48

300

46.6 * .72 =

33.552

400

36.71 * .36 =

13.2156

500

637.9 * 2.6 =

1,658.54

Division

100

7.6 ÷ 2 =

3.8

200

5.1 ÷ .3 =

17

300

1.80 ÷ .03 =

60

400

300 ÷ 1.5 =

200

500

14.28 ÷ 4.2

3.4

Challenge

100

Bob ran 3.76 miles on Monday, 2.8 miles on Tuesday, and 8.093 miles on Wednesday. How many miles did he run in all?

14.653 miles in all

200

Mr. Hough went to the grocery store and bought a salad for $2.35 and an energy drink for $3.99. If he brought $10.00, how much change did he have left?

$3.66 left 

300

Mrs. Bustamante runs a marathon in 3.25 hours. Ms. Salcido takes 1.6 times as long to run the same marathon. How many hours does it take Ms. Salcido to run the marathon?

 5.2 hours

400

Ms. Addison kayaks on a river near her home. She plans to kayak a total of 6.4 miles. Ms. Addison kayaks at an average speed of 1.6 miles per hour. How many hours will it take Ms. Addison to kayak the 6.4 miles?

4 hours

500

Mrs. Schlecht pays $7.59 for 2.2 pounds of ground turkey. What is the price per pound of the ground turkey?

 $3.45 per pound