Decimal Operations

Adding Decimals

100

2.3 + 3.5 = 

5.8

200

6.2 + 2.9 = 

9.1

300

85.6 + 217.4 = 

303

400

2.51 + 3.68 + 11.2 = 

17.39

500

113.24 + 23.56 + 15.875

152.675

Subtracting Decimals

100

8.5 - 3.2

5.3

200

12.6 - 8.8

3.8

300

113.7 - 85.9

27.8

400

234.67 - 115.8

118.87

500

3,045.0627-518.7909

2526.2718

Multiplying Decimals

100

7 x 0.6

4.2

200

1.2 x 0.5

0.6

300

2.3 x 3.2

7.36

400

0.45 x 0.61

0.2745

500

1.08 x 0.0026

0.002808

Dividing Decimals

100

4.5 / 0.5

9

200

7.2 / 0.9

8

300

6.72 / 1.2

5.6

400

3.06 / 8.5

0.36

500

17.08 / 5.6

3.05

Decimal Word Problems

100

Colton ate 3.2 pounds of candy on Tuesday and 2.7 pounds of candy on Wednesday.  How much did he eat between the two days?

5.9

200

Loki gave Mr. Deaner a $5.70 tip and Maddie gave him a $8.25 tip.  How much more did Maddie tip him compared to Loki?

2.55

300

If George has 13.6 cookies and shares them equally with 3 friends after eating 1 cookie, how many cookies will each friend get?

4.2

400

If grapes cost $1.35 per pound and Wes bought 4.2 pounds, how much did his grapes cost?

5.67

500

If frozen yogurt A is $2.52 for 4.5 ounces, B is $3.77 for 6.5 ounces, and C costs $0.57 per ounce, what is the cost per ounce of the cheapest frozen yogurt?

0.56