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Missing number in subtraction
Find the unknown number subtracted from a starting total to leave a given remainder. Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 10-12
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 36 − ____ = 8
2. Find the missing number: 36 − ____ = 7
3. Find the missing number: 52 − ____ = 37
4. Find the missing number: 57 − ____ = 39
5. Find the missing number: 36 − ____ = 23
6. Find the missing number: 29 − ____ = 14
7. Find the missing number: 56 − ____ = 29
8. Find the missing number: 13 − ____ = 5
9. Find the missing number: 20 − ____ = 5
10. Find the missing number: 18 − ____ = 12
11. Find the missing number: 44 − ____ = 19
12. Find the missing number: 31 − ____ = 7
12 questions · Seed 50 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 10-12
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 36 − ____ = 8
28Subtract 8 from 36: 36 − 8 = 28.
2. Find the missing number: 36 − ____ = 7
29Subtract 7 from 36: 36 − 7 = 29.
3. Find the missing number: 52 − ____ = 37
15Subtract 37 from 52: 52 − 37 = 15.
4. Find the missing number: 57 − ____ = 39
18Subtract 39 from 57: 57 − 39 = 18.
5. Find the missing number: 36 − ____ = 23
13Subtract 23 from 36: 36 − 23 = 13.
6. Find the missing number: 29 − ____ = 14
15Subtract 14 from 29: 29 − 14 = 15.
7. Find the missing number: 56 − ____ = 29
27Subtract 29 from 56: 56 − 29 = 27.
8. Find the missing number: 13 − ____ = 5
8Subtract 5 from 13: 13 − 5 = 8.
9. Find the missing number: 20 − ____ = 5
15Subtract 5 from 20: 20 − 5 = 15.
10. Find the missing number: 18 − ____ = 12
6Subtract 12 from 18: 18 − 12 = 6.
11. Find the missing number: 44 − ____ = 19
25Subtract 19 from 44: 44 − 19 = 25.
12. Find the missing number: 31 − ____ = 7
24Subtract 7 from 31: 31 − 7 = 24.
12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 10-12
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 36 − ____ = 8
2. Find the missing number: 36 − ____ = 7
3. Find the missing number: 52 − ____ = 37
4. Find the missing number: 57 − ____ = 39
5. Find the missing number: 36 − ____ = 23
6. Find the missing number: 29 − ____ = 14
7. Find the missing number: 56 − ____ = 29
8. Find the missing number: 13 − ____ = 5
9. Find the missing number: 20 − ____ = 5
10. Find the missing number: 18 − ____ = 12
11. Find the missing number: 44 − ____ = 19
12. Find the missing number: 31 − ____ = 7
12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 10-12
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 36 − ____ = 8
28Subtract 8 from 36: 36 − 8 = 28.
2. Find the missing number: 36 − ____ = 7
29Subtract 7 from 36: 36 − 7 = 29.
3. Find the missing number: 52 − ____ = 37
15Subtract 37 from 52: 52 − 37 = 15.
4. Find the missing number: 57 − ____ = 39
18Subtract 39 from 57: 57 − 39 = 18.
5. Find the missing number: 36 − ____ = 23
13Subtract 23 from 36: 36 − 23 = 13.
6. Find the missing number: 29 − ____ = 14
15Subtract 14 from 29: 29 − 14 = 15.
7. Find the missing number: 56 − ____ = 29
27Subtract 29 from 56: 56 − 29 = 27.
8. Find the missing number: 13 − ____ = 5
8Subtract 5 from 13: 13 − 5 = 8.
9. Find the missing number: 20 − ____ = 5
15Subtract 5 from 20: 20 − 5 = 15.
10. Find the missing number: 18 − ____ = 12
6Subtract 12 from 18: 18 − 12 = 6.
11. Find the missing number: 44 − ____ = 19
25Subtract 19 from 44: 44 − 19 = 25.
12. Find the missing number: 31 − ____ = 7
24Subtract 7 from 31: 31 − 7 = 24.
12 questions · Seed 50 · Age guidance, not curriculum certification