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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: 33 − ____ = 29
2. Find the missing number: 43 − ____ = 34
3. Find the missing number: 51 − ____ = 26
4. Find the missing number: 32 − ____ = 16
5. Find the missing number: 54 − ____ = 19
6. Find the missing number: 37 − ____ = 28
7. Find the missing number: 36 − ____ = 25
8. Find the missing number: 58 − ____ = 27
9. Find the missing number: 35 − ____ = 14
10. Find the missing number: 55 − ____ = 24
11. Find the missing number: 45 − ____ = 14
12. Find the missing number: 44 − ____ = 10
12 questions · Seed 70 · 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: 33 − ____ = 29
4Subtract 29 from 33: 33 − 29 = 4.
2. Find the missing number: 43 − ____ = 34
9Subtract 34 from 43: 43 − 34 = 9.
3. Find the missing number: 51 − ____ = 26
25Subtract 26 from 51: 51 − 26 = 25.
4. Find the missing number: 32 − ____ = 16
16Subtract 16 from 32: 32 − 16 = 16.
5. Find the missing number: 54 − ____ = 19
35Subtract 19 from 54: 54 − 19 = 35.
6. Find the missing number: 37 − ____ = 28
9Subtract 28 from 37: 37 − 28 = 9.
7. Find the missing number: 36 − ____ = 25
11Subtract 25 from 36: 36 − 25 = 11.
8. Find the missing number: 58 − ____ = 27
31Subtract 27 from 58: 58 − 27 = 31.
9. Find the missing number: 35 − ____ = 14
21Subtract 14 from 35: 35 − 14 = 21.
10. Find the missing number: 55 − ____ = 24
31Subtract 24 from 55: 55 − 24 = 31.
11. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
12. Find the missing number: 44 − ____ = 10
34Subtract 10 from 44: 44 − 10 = 34.
12 questions · Seed 70 · 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: 33 − ____ = 29
2. Find the missing number: 43 − ____ = 34
3. Find the missing number: 51 − ____ = 26
4. Find the missing number: 32 − ____ = 16
5. Find the missing number: 54 − ____ = 19
6. Find the missing number: 37 − ____ = 28
7. Find the missing number: 36 − ____ = 25
8. Find the missing number: 58 − ____ = 27
9. Find the missing number: 35 − ____ = 14
10. Find the missing number: 55 − ____ = 24
11. Find the missing number: 45 − ____ = 14
12. Find the missing number: 44 − ____ = 10
12 questions · Seed 70 · 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: 33 − ____ = 29
4Subtract 29 from 33: 33 − 29 = 4.
2. Find the missing number: 43 − ____ = 34
9Subtract 34 from 43: 43 − 34 = 9.
3. Find the missing number: 51 − ____ = 26
25Subtract 26 from 51: 51 − 26 = 25.
4. Find the missing number: 32 − ____ = 16
16Subtract 16 from 32: 32 − 16 = 16.
5. Find the missing number: 54 − ____ = 19
35Subtract 19 from 54: 54 − 19 = 35.
6. Find the missing number: 37 − ____ = 28
9Subtract 28 from 37: 37 − 28 = 9.
7. Find the missing number: 36 − ____ = 25
11Subtract 25 from 36: 36 − 25 = 11.
8. Find the missing number: 58 − ____ = 27
31Subtract 27 from 58: 58 − 27 = 31.
9. Find the missing number: 35 − ____ = 14
21Subtract 14 from 35: 35 − 14 = 21.
10. Find the missing number: 55 − ____ = 24
31Subtract 24 from 55: 55 − 24 = 31.
11. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
12. Find the missing number: 44 − ____ = 10
34Subtract 10 from 44: 44 − 10 = 34.
12 questions · Seed 70 · Age guidance, not curriculum certification