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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: 43 − ____ = 23
2. Find the missing number: 41 − ____ = 12
3. Find the missing number: 15 − ____ = 4
4. Find the missing number: 59 − ____ = 33
5. Find the missing number: 41 − ____ = 20
6. Find the missing number: 40 − ____ = 29
7. Find the missing number: 32 − ____ = 18
8. Find the missing number: 21 − ____ = 9
9. Find the missing number: 48 − ____ = 17
10. Find the missing number: 47 − ____ = 32
11. Find the missing number: 36 − ____ = 4
12. Find the missing number: 44 − ____ = 31
12 questions · Seed 104741 · 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: 43 − ____ = 23
20Subtract 23 from 43: 43 − 23 = 20.
2. Find the missing number: 41 − ____ = 12
29Subtract 12 from 41: 41 − 12 = 29.
3. Find the missing number: 15 − ____ = 4
11Subtract 4 from 15: 15 − 4 = 11.
4. Find the missing number: 59 − ____ = 33
26Subtract 33 from 59: 59 − 33 = 26.
5. Find the missing number: 41 − ____ = 20
21Subtract 20 from 41: 41 − 20 = 21.
6. Find the missing number: 40 − ____ = 29
11Subtract 29 from 40: 40 − 29 = 11.
7. Find the missing number: 32 − ____ = 18
14Subtract 18 from 32: 32 − 18 = 14.
8. Find the missing number: 21 − ____ = 9
12Subtract 9 from 21: 21 − 9 = 12.
9. Find the missing number: 48 − ____ = 17
31Subtract 17 from 48: 48 − 17 = 31.
10. Find the missing number: 47 − ____ = 32
15Subtract 32 from 47: 47 − 32 = 15.
11. Find the missing number: 36 − ____ = 4
32Subtract 4 from 36: 36 − 4 = 32.
12. Find the missing number: 44 − ____ = 31
13Subtract 31 from 44: 44 − 31 = 13.
12 questions · Seed 104741 · 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: 43 − ____ = 23
2. Find the missing number: 41 − ____ = 12
3. Find the missing number: 15 − ____ = 4
4. Find the missing number: 59 − ____ = 33
5. Find the missing number: 41 − ____ = 20
6. Find the missing number: 40 − ____ = 29
7. Find the missing number: 32 − ____ = 18
8. Find the missing number: 21 − ____ = 9
9. Find the missing number: 48 − ____ = 17
10. Find the missing number: 47 − ____ = 32
11. Find the missing number: 36 − ____ = 4
12. Find the missing number: 44 − ____ = 31
12 questions · Seed 104741 · 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: 43 − ____ = 23
20Subtract 23 from 43: 43 − 23 = 20.
2. Find the missing number: 41 − ____ = 12
29Subtract 12 from 41: 41 − 12 = 29.
3. Find the missing number: 15 − ____ = 4
11Subtract 4 from 15: 15 − 4 = 11.
4. Find the missing number: 59 − ____ = 33
26Subtract 33 from 59: 59 − 33 = 26.
5. Find the missing number: 41 − ____ = 20
21Subtract 20 from 41: 41 − 20 = 21.
6. Find the missing number: 40 − ____ = 29
11Subtract 29 from 40: 40 − 29 = 11.
7. Find the missing number: 32 − ____ = 18
14Subtract 18 from 32: 32 − 18 = 14.
8. Find the missing number: 21 − ____ = 9
12Subtract 9 from 21: 21 − 9 = 12.
9. Find the missing number: 48 − ____ = 17
31Subtract 17 from 48: 48 − 17 = 31.
10. Find the missing number: 47 − ____ = 32
15Subtract 32 from 47: 47 − 32 = 15.
11. Find the missing number: 36 − ____ = 4
32Subtract 4 from 36: 36 − 4 = 32.
12. Find the missing number: 44 − ____ = 31
13Subtract 31 from 44: 44 − 31 = 13.
12 questions · Seed 104741 · Age guidance, not curriculum certification