Math worksheet for practicing equivalent ratios with fraction problems.

Let’s solve each equation step by step. We’re looking for the missing number that makes each addition or subtraction sentence true.

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1. 5 + __ = 9
Think: What number added to 5 gives 9?
9 - 5 = 4 → Answer: 4

2. 8 + __ = 10
10 - 8 = 2 → Answer: 2

3. 6 + __ = 7
7 - 6 = 1 → Answer: 1

4. __ + 7 = 12
12 - 7 = 5 → Answer: 5

5. 9 + __ = 11
11 - 9 = 2 → Answer: 2

6. __ + 10 = 13
13 - 10 = 3 → Answer: 3

7. 10 - __ = 4
What do we subtract from 10 to get 4?
10 - 4 = 6 → So, 10 - 6 = 4 → Answer: 6

8. 14 - __ = 5
14 - 5 = 9 → So, 14 - 9 = 5 → Answer: 9

9. 11 - __ = 8
11 - 8 = 3 → So, 11 - 3 = 8 → Answer: 3

10. __ - 4 = 5
What minus 4 equals 5?
5 + 4 = 9 → Answer: 9

11. __ - 6 = 10
10 + 6 = 16 → Answer: 16

12. __ - 3 = 7
7 + 3 = 10 → Answer: 10

13. __ - 9 = 1
1 + 9 = 10 → Answer: 10

14. 8 - __ = 5
8 - 5 = 3 → So, 8 - 3 = 5 → Answer: 3

15. __ - 2 = 10
10 + 2 = 12 → Answer: 12

16. 1 - __ = 0
1 - 1 = 0 → Answer: 1

17. __ - 8 = 12
12 + 8 = 20 → Answer: 20

18. __ - 9 = 11
11 + 9 = 20 → Answer: 20

19. 15 - __ = 7
15 - 7 = 8 → So, 15 - 8 = 7 → Answer: 8

20. __ - 5 = 13
13 + 5 = 18 → Answer: 18

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Final Answer:
1. 4
2. 2
3. 1
4. 5
5. 2
6. 3
7. 6
8. 9
9. 3
10. 9
11. 16
12. 10
13. 10
14. 3
15. 12
16. 1
17. 20
18. 20
19. 8
20. 18