Subtraction Relative to Addition - Answer Key - Identify the correct number for both equations

Sep 30, 2026

Practice answer key for a math worksheet titled “Subtraction Relative to Addition.” Each problem presents an addition equation and a corresponding subtraction equation, then asks to choose which single number correctly satisfies both. Problems 1 through 20 pair sums with differences, requiring consistent understanding of how the subtraction relates to the given addition. The sheet also lists the selected correct number for every item.

LanguageEnglish

CategoryExam

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

Determine Correct Numbers

Problems 1-20

Subtraction Relative to Addition Name: | Determine which number correctly answers both equations. | | | | | Answers | | --- | --- | --- | --- | --- | --- | | 1) | + 3 = 19 | 2) | + 6 = 13 | | | | | 19-3 = | | 13-6 = | 1. | | | | | | | | | | 3) | + 1 = 18 | 4) | + 1 = 14 | 2. | | | | | | | | | | | 18-1 = | | 14-1 = | 3. | | | | | | | | | | 5) | + 10 = 14 | 6) | + 8 = 20 | 4. | | | | | | | | | | | 14-10 = | | 20-8 = | 5. | | | | | | | | | | 7) | + 1 = 20 | 8) | + 4 = 8 | 6. | | | | | | | | | | | 20-1 = | | 8-4 = | 7. | | | | | | | | | | 9) | + 6 = 9 | 10) | + 11 = 18 | 8. | | | | | | | | | | | 9-6 = | | 18-11 = | 9. | | | | | | | | | | 11) | + 2 = 17 | 12) | + 2 = 15 | 10. | | | | | | | | | | | 17-2 = | | 15-2 = | 11. | | | | | | | | | | 13) | + 2 = 16 | 14) | + 3 = 5 | 12. | | | | | | | | | | | 16-2 = | | 5-3 = | 13. | | | | | | | | | | 15) | + 6 = 18 | 16) | + 10 = 18 | 14. | | | | | | | | | | 17) | 18-6 =
+ 9 = 11 | 18) | 18-10 =
+ 4 = 18 | 15.
16. | | | | | | | | | | | | | | | | | 19) | 11-9 =
+ 3 = 10 | 20) | 18-4 =
+ 4 = 11 | 17.
18. | | | | | | | | | | | | | | | | | | 10-3 = | | 11-4 = | 19.
20. | | | | | | | | | Math [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 6 1-10 11-20 95 45 90 40 85 35 80 30 75 25 70 20 65 15 60 10 55 5 50 0 Subtraction Relative to Addition Name: Answer Key | Determine which number correctly answers both equations.
1) 16 + 3 = 19 2) 7 + 6 = 13
19-3 = 16 13-6 = 7
3) 17 + 1 = 18 4) 13 + 1 = 14
18-1 = 17 14-1 = 13
5) 4 + 10 = 14 6) 12 + 8 = 20
14-10 = 4 20-8 = 12
7) 19 + 1 = 20 8) 4 + 4 = 8
20-1 = 19 8-4 = 4
9) 3 + 6 = 9 10) 7 + 11 = 18
9-6 = 3 18-11 = 7
11) 15 + 2 = 17 12) 13 + 2 = 15
17-2 = 15 15-2 = 13
13) 14 + 2 = 16 14) 2 + 3 = 5
16-2 = 14 5-3 = 2
15) 12 + 6 = 18 16) 8 + 10 = 18
18-6 = 12 18-10 = 8
17) 2 + 9 = 11 18) 14 + 4 = 18
11-9 = 2 18-4 = 14
19) 7 + 3 = 10 20) 7 + 4 = 11
10-3 = 7 11-4 = 7 | Answers
1. 16 2. 7 3. 17 4. 13 5. 4 6. 12 7. 19 8. 4 9. 3 10. 7 11. 15 12. 13 13. 14 14. 2 15. 12 16. 8 17. 2 18. 14 19. 7
20. 7 | | --- | --- | Math [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 6 1-10 11-20 95 45 90 40 85 35 80 30 75 25 70 20 65 15 60 10 55 5 50 0 Subtraction Relative to Addition Name: | Determine which number correctly answers both equations. | | Answers
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12. | | --- | --- | --- | |
16 13 4 17
7 3 13 12
4 7 15 19 | | | | 1) + 3 = 19
19-3 =
3) + 1 = 18
18-1 =
5) + 10 = 14
14-10 =
7) + 1 = 20
20-1 =
9) + 6 = 9
9-6 =
11) + 2 = 17
17-2 = | 2) + 6 = 13
13-6 =
4) + 1 = 14
14-1 =
6) + 8 = 20
20-8 =
8) + 4 = 8
8-4 =
10) + 11 = 18
18-11 =
12) + 2 = 15
15-2 = | | Math Modified [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 6 1-10 11-12 | 92 | 83 | 75 | 67 | 58 | 50 | 42 | 33 | 25 | 17 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 8 | 0 | | | | | | | | |

FAQs

What does each question ask you to do?

Choose the number that correctly answers both the addition equation and the subtraction equation for that item.

How are the addition and subtraction equations related?

The subtraction part uses the result implied by the addition equation, so the correct number must make both expressions consistent.

Where can the correct answers be found?

The worksheet includes an “Answer Key” section listing the correct chosen number for each problem from 1 to 20.

Sep 30, 2026

Uploaded by Danger Angel