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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: 52 − ____ = 17
2. Find the missing number: 14 − ____ = 7
3. Find the missing number: 26 − ____ = 13
4. Find the missing number: 66 − ____ = 35
5. Find the missing number: 50 − ____ = 37
6. Find the missing number: 38 − ____ = 33
7. Find the missing number: 58 − ____ = 29
8. Find the missing number: 46 − ____ = 14
9. Find the missing number: 33 − ____ = 7
10. Find the missing number: 22 − ____ = 13
11. Find the missing number: 52 − ____ = 37
12. Find the missing number: 53 − ____ = 39
12 questions · Seed 120 · 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: 52 − ____ = 17
35Subtract 17 from 52: 52 − 17 = 35.
2. Find the missing number: 14 − ____ = 7
7Subtract 7 from 14: 14 − 7 = 7.
3. Find the missing number: 26 − ____ = 13
13Subtract 13 from 26: 26 − 13 = 13.
4. Find the missing number: 66 − ____ = 35
31Subtract 35 from 66: 66 − 35 = 31.
5. Find the missing number: 50 − ____ = 37
13Subtract 37 from 50: 50 − 37 = 13.
6. Find the missing number: 38 − ____ = 33
5Subtract 33 from 38: 38 − 33 = 5.
7. Find the missing number: 58 − ____ = 29
29Subtract 29 from 58: 58 − 29 = 29.
8. Find the missing number: 46 − ____ = 14
32Subtract 14 from 46: 46 − 14 = 32.
9. Find the missing number: 33 − ____ = 7
26Subtract 7 from 33: 33 − 7 = 26.
10. Find the missing number: 22 − ____ = 13
9Subtract 13 from 22: 22 − 13 = 9.
11. Find the missing number: 52 − ____ = 37
15Subtract 37 from 52: 52 − 37 = 15.
12. Find the missing number: 53 − ____ = 39
14Subtract 39 from 53: 53 − 39 = 14.
12 questions · Seed 120 · 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: 52 − ____ = 17
2. Find the missing number: 14 − ____ = 7
3. Find the missing number: 26 − ____ = 13
4. Find the missing number: 66 − ____ = 35
5. Find the missing number: 50 − ____ = 37
6. Find the missing number: 38 − ____ = 33
7. Find the missing number: 58 − ____ = 29
8. Find the missing number: 46 − ____ = 14
9. Find the missing number: 33 − ____ = 7
10. Find the missing number: 22 − ____ = 13
11. Find the missing number: 52 − ____ = 37
12. Find the missing number: 53 − ____ = 39
12 questions · Seed 120 · 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: 52 − ____ = 17
35Subtract 17 from 52: 52 − 17 = 35.
2. Find the missing number: 14 − ____ = 7
7Subtract 7 from 14: 14 − 7 = 7.
3. Find the missing number: 26 − ____ = 13
13Subtract 13 from 26: 26 − 13 = 13.
4. Find the missing number: 66 − ____ = 35
31Subtract 35 from 66: 66 − 35 = 31.
5. Find the missing number: 50 − ____ = 37
13Subtract 37 from 50: 50 − 37 = 13.
6. Find the missing number: 38 − ____ = 33
5Subtract 33 from 38: 38 − 33 = 5.
7. Find the missing number: 58 − ____ = 29
29Subtract 29 from 58: 58 − 29 = 29.
8. Find the missing number: 46 − ____ = 14
32Subtract 14 from 46: 46 − 14 = 32.
9. Find the missing number: 33 − ____ = 7
26Subtract 7 from 33: 33 − 7 = 26.
10. Find the missing number: 22 − ____ = 13
9Subtract 13 from 22: 22 − 13 = 9.
11. Find the missing number: 52 − ____ = 37
15Subtract 37 from 52: 52 − 37 = 15.
12. Find the missing number: 53 − ____ = 39
14Subtract 39 from 53: 53 − 39 = 14.
12 questions · Seed 120 · Age guidance, not curriculum certification