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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 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 47 − ____ = 31
2. Find the missing number: 19 − ____ = 10
3. Find the missing number: 28 − ____ = 12
4. Find the missing number: 23 − ____ = 14
5. Find the missing number: 33 − ____ = 6
6. Find the missing number: 46 − ____ = 31
7. Find the missing number: 17 − ____ = 4
8. Find the missing number: 38 − ____ = 19
9. Find the missing number: 18 − ____ = 7
10. Find the missing number: 44 − ____ = 11
11. Find the missing number: 45 − ____ = 12
12. Find the missing number: 28 − ____ = 17
12 questions · Seed 112 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 47 − ____ = 31
16Subtract 31 from 47: 47 − 31 = 16.
2. Find the missing number: 19 − ____ = 10
9Subtract 10 from 19: 19 − 10 = 9.
3. Find the missing number: 28 − ____ = 12
16Subtract 12 from 28: 28 − 12 = 16.
4. Find the missing number: 23 − ____ = 14
9Subtract 14 from 23: 23 − 14 = 9.
5. Find the missing number: 33 − ____ = 6
27Subtract 6 from 33: 33 − 6 = 27.
6. Find the missing number: 46 − ____ = 31
15Subtract 31 from 46: 46 − 31 = 15.
7. Find the missing number: 17 − ____ = 4
13Subtract 4 from 17: 17 − 4 = 13.
8. Find the missing number: 38 − ____ = 19
19Subtract 19 from 38: 38 − 19 = 19.
9. Find the missing number: 18 − ____ = 7
11Subtract 7 from 18: 18 − 7 = 11.
10. Find the missing number: 44 − ____ = 11
33Subtract 11 from 44: 44 − 11 = 33.
11. Find the missing number: 45 − ____ = 12
33Subtract 12 from 45: 45 − 12 = 33.
12. Find the missing number: 28 − ____ = 17
11Subtract 17 from 28: 28 − 17 = 11.
12 questions · Seed 112 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 47 − ____ = 31
2. Find the missing number: 19 − ____ = 10
3. Find the missing number: 28 − ____ = 12
4. Find the missing number: 23 − ____ = 14
5. Find the missing number: 33 − ____ = 6
6. Find the missing number: 46 − ____ = 31
7. Find the missing number: 17 − ____ = 4
8. Find the missing number: 38 − ____ = 19
9. Find the missing number: 18 − ____ = 7
10. Find the missing number: 44 − ____ = 11
11. Find the missing number: 45 − ____ = 12
12. Find the missing number: 28 − ____ = 17
12 questions · Seed 112 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 47 − ____ = 31
16Subtract 31 from 47: 47 − 31 = 16.
2. Find the missing number: 19 − ____ = 10
9Subtract 10 from 19: 19 − 10 = 9.
3. Find the missing number: 28 − ____ = 12
16Subtract 12 from 28: 28 − 12 = 16.
4. Find the missing number: 23 − ____ = 14
9Subtract 14 from 23: 23 − 14 = 9.
5. Find the missing number: 33 − ____ = 6
27Subtract 6 from 33: 33 − 6 = 27.
6. Find the missing number: 46 − ____ = 31
15Subtract 31 from 46: 46 − 31 = 15.
7. Find the missing number: 17 − ____ = 4
13Subtract 4 from 17: 17 − 4 = 13.
8. Find the missing number: 38 − ____ = 19
19Subtract 19 from 38: 38 − 19 = 19.
9. Find the missing number: 18 − ____ = 7
11Subtract 7 from 18: 18 − 7 = 11.
10. Find the missing number: 44 − ____ = 11
33Subtract 11 from 44: 44 − 11 = 33.
11. Find the missing number: 45 − ____ = 12
33Subtract 12 from 45: 45 − 12 = 33.
12. Find the missing number: 28 − ____ = 17
11Subtract 17 from 28: 28 − 17 = 11.
12 questions · Seed 112 · Age guidance, not curriculum certification