Subtracting Decimals
Adding
One Step
Area Model
Multistep
100

12.5 - 7.8

4.7

100

456 + 279

735

100

Sarah has 24 apples. She buys 15 more. How many apples does she have now?

39 apples

100

23 × 47

1,081

100

Emily has 120 stickers. She gives 25 stickers to her friend and then buys 40 more. How many stickers does she have now?

120 - 25 = 95
95 + 40 = 135
Answer: 135 stickers

200

45.6 - 28.9

16.7

200

582 + 367

949

200

Tom had 50 candies. He gave 18 candies to his friends. How many candies does he have left?

32 candies

200

36 × 29

1,044

200

A book costs $15. If Sarah buys 3 books and pays with a $50 bill, how much change does she get back?

15 × 3 = 45
50 - 45 = 5
Answer: $5 change

300

63.4 - 29.7

33.7

300

749 + 156

909

300

A pack of pencils contains 12 pencils. If Mia buys 4 packs, how many pencils does she have in total?

48 pencils

300

256 × 4

1024

300

A farmer has 250 apples. He sells 80 apples at the market and then picks another 65 apples. How many apples does he have now?

250 - 80 = 170
170 + 65 = 235
Answer: 235 apples

400

90.2 - 45.6

44.6

400

6.38 + 2.75

9.13

400

There are 56 cookies, and they need to be shared equally among 7 children. How many cookies does each child get?

8 cookies

400

135 × 7

945

400

A school organizes a field trip for 150 students. Each ticket costs $12. If they collect $1,500 from students, how much more money do they need to cover the total cost?

150 × 12 = 1,800
1,800 - 1,500 = 300
Answer: $300 more needed

500

50.05 - 32.78

17.27

500

825 + 198

1,023

500

A library has 320 books. They received a donation of 150 books. How many books are there now?

470

500

1,234 × 6

7404

500

Mark has $250. He spends $45 on a new game and then saves $100. How much money does he have left?

250 - 45 = 205
205 - 100 = 105
Answer: $105 left