Decimals Unit!

Adding

100

6.8 + 36.1 

42.9

200

58.9 + 3.04

61.94

300

54.26 + 12.3

66.56

400

27.365 + 31.5 

58. 865

500

123.2369 + 112.36

235.5969

Subtracting

100

3.26 - 2.13

1.13

200

3.95 - 2.7 

1.25

300

125 - .68

124.32

400

.468 - .059

.409

500

5.45 - 3.799

1.651

Multiplying

100

1.1 x 2.3

2.53

200

.6 x 2.1

1.26

300

4.25 x 21

89.25

400

2.003 x .05

.10015

500

.312 x 1.67

0.52104

Dividing

100

6.6 ÷ 2

3.3

200

.25 ÷ 5

0.05

300

.25 ÷ .05 

5 

400

.848 ÷ 8 

.106

500

.4564 ÷ .04

11.41

Word Problems

100

Ko has $7.50 and buys food from McDonalds for $4.99. If tax is not charged how much does he have left?

$2.51

200

Eric has $8.43, Josefina has $2 and Nahio has $3.11. How much money do they have combined?

$13.54

300

Leslie had $325.69 in her bank account. She had just spent $175.23 on groceries. How much does she have left?

$150.46

400

Chris completed a 100-meter breaststroke swimming race in 84.567 seconds. Michael completed the 100-meter breaststroke swimming race in 95.34 seconds. How much faster is Chris’s time than Michael’s?

10.773 seconds

500

Brandon has $20. He buys chocolate for $3.50, popcorn for $4.25, and a soda for $3.75. How much money, if any, does he have left?

$8.50