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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: 38 − ____ = 25
2. Find the missing number: 33 − ____ = 30
3. Find the missing number: 28 − ____ = 14
4. Find the missing number: 49 − ____ = 39
5. Find the missing number: 29 − ____ = 5
6. Find the missing number: 44 − ____ = 38
7. Find the missing number: 38 − ____ = 6
8. Find the missing number: 37 − ____ = 26
9. Find the missing number: 59 − ____ = 36
10. Find the missing number: 35 − ____ = 12
11. Find the missing number: 59 − ____ = 28
12. Find the missing number: 42 − ____ = 22
12 questions · Seed 102 · 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: 38 − ____ = 25
13Subtract 25 from 38: 38 − 25 = 13.
2. Find the missing number: 33 − ____ = 30
3Subtract 30 from 33: 33 − 30 = 3.
3. Find the missing number: 28 − ____ = 14
14Subtract 14 from 28: 28 − 14 = 14.
4. Find the missing number: 49 − ____ = 39
10Subtract 39 from 49: 49 − 39 = 10.
5. Find the missing number: 29 − ____ = 5
24Subtract 5 from 29: 29 − 5 = 24.
6. Find the missing number: 44 − ____ = 38
6Subtract 38 from 44: 44 − 38 = 6.
7. Find the missing number: 38 − ____ = 6
32Subtract 6 from 38: 38 − 6 = 32.
8. Find the missing number: 37 − ____ = 26
11Subtract 26 from 37: 37 − 26 = 11.
9. Find the missing number: 59 − ____ = 36
23Subtract 36 from 59: 59 − 36 = 23.
10. Find the missing number: 35 − ____ = 12
23Subtract 12 from 35: 35 − 12 = 23.
11. Find the missing number: 59 − ____ = 28
31Subtract 28 from 59: 59 − 28 = 31.
12. Find the missing number: 42 − ____ = 22
20Subtract 22 from 42: 42 − 22 = 20.
12 questions · Seed 102 · 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: 38 − ____ = 25
2. Find the missing number: 33 − ____ = 30
3. Find the missing number: 28 − ____ = 14
4. Find the missing number: 49 − ____ = 39
5. Find the missing number: 29 − ____ = 5
6. Find the missing number: 44 − ____ = 38
7. Find the missing number: 38 − ____ = 6
8. Find the missing number: 37 − ____ = 26
9. Find the missing number: 59 − ____ = 36
10. Find the missing number: 35 − ____ = 12
11. Find the missing number: 59 − ____ = 28
12. Find the missing number: 42 − ____ = 22
12 questions · Seed 102 · 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: 38 − ____ = 25
13Subtract 25 from 38: 38 − 25 = 13.
2. Find the missing number: 33 − ____ = 30
3Subtract 30 from 33: 33 − 30 = 3.
3. Find the missing number: 28 − ____ = 14
14Subtract 14 from 28: 28 − 14 = 14.
4. Find the missing number: 49 − ____ = 39
10Subtract 39 from 49: 49 − 39 = 10.
5. Find the missing number: 29 − ____ = 5
24Subtract 5 from 29: 29 − 5 = 24.
6. Find the missing number: 44 − ____ = 38
6Subtract 38 from 44: 44 − 38 = 6.
7. Find the missing number: 38 − ____ = 6
32Subtract 6 from 38: 38 − 6 = 32.
8. Find the missing number: 37 − ____ = 26
11Subtract 26 from 37: 37 − 26 = 11.
9. Find the missing number: 59 − ____ = 36
23Subtract 36 from 59: 59 − 36 = 23.
10. Find the missing number: 35 − ____ = 12
23Subtract 12 from 35: 35 − 12 = 23.
11. Find the missing number: 59 − ____ = 28
31Subtract 28 from 59: 59 − 28 = 31.
12. Find the missing number: 42 − ____ = 22
20Subtract 22 from 42: 42 − 22 = 20.
12 questions · Seed 102 · Age guidance, not curriculum certification