+ and - Decimals
Patterns
Word Problems
100

1.236+2.987

4.223

100

35.00, 36.75, 38.50, ___

40.25

100

At her first swim lesson, Mica swam 15.218 seconds without stopping. After her second lesson, she could swim for 57.907 seconds without stopping. How much longer could Mica swim without stopping after her second lesson than at her first lesson? 

42.689 seconds 

200

9.741-5.234

4.507

200

4.23, 4.14, 4.05, ___, 3.87

3.96

200

Students are selling stickers at school. 

One magnet cost $0.30

Two magnets cost $0.43

Three magnets cost $0.56 

Four magnets cost $0.69

If this pattern continues, how much will 6 magnets cost? 

$0.95

300

6.951+3.287

10.238

300

5.555,4.888,4.221, _____

3.554

300

Jozian says the difference between 21.009 and 32.111 is 11.102. Is Jozian correct? 


Did he have to regroup a hundredth or a tenth? 

Jozian is correct because he regrouped in the hundredths. 

400

5.850-1.2

3.65

400

9.123, 10.456, 11.789

Rule: + 1.333

400

Isabella hiked 5.252 miles, Liam hiked 4.214 miles, and Orion hiked 4.403 miles. How far did Isabella, Liam, and Orion hike in all? 

13.869 miles

500

2.571-0.56

2.011

500

7.987,7.978,____, 7.96

0.009

500

Jeff brough $15.75 to the zoo. He bought 2 stuffed animals for $4 each, a drink for $2.25 and animal stickers for $1.80. How much money does Jeff have left? 

$3.70