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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: 36 − ____ = 9
2. Find the missing number: 37 − ____ = 12
3. Find the missing number: 9 − ____ = 5
4. Find the missing number: 50 − ____ = 30
5. Find the missing number: 48 − ____ = 28
6. Find the missing number: 35 − ____ = 4
7. Find the missing number: 39 − ____ = 25
8. Find the missing number: 73 − ____ = 38
9. Find the missing number: 60 − ____ = 27
10. Find the missing number: 42 − ____ = 34
11. Find the missing number: 43 − ____ = 20
12. Find the missing number: 14 − ____ = 9
12 questions · Seed 43 · 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: 36 − ____ = 9
27Subtract 9 from 36: 36 − 9 = 27.
2. Find the missing number: 37 − ____ = 12
25Subtract 12 from 37: 37 − 12 = 25.
3. Find the missing number: 9 − ____ = 5
4Subtract 5 from 9: 9 − 5 = 4.
4. Find the missing number: 50 − ____ = 30
20Subtract 30 from 50: 50 − 30 = 20.
5. Find the missing number: 48 − ____ = 28
20Subtract 28 from 48: 48 − 28 = 20.
6. Find the missing number: 35 − ____ = 4
31Subtract 4 from 35: 35 − 4 = 31.
7. Find the missing number: 39 − ____ = 25
14Subtract 25 from 39: 39 − 25 = 14.
8. Find the missing number: 73 − ____ = 38
35Subtract 38 from 73: 73 − 38 = 35.
9. Find the missing number: 60 − ____ = 27
33Subtract 27 from 60: 60 − 27 = 33.
10. Find the missing number: 42 − ____ = 34
8Subtract 34 from 42: 42 − 34 = 8.
11. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
12. Find the missing number: 14 − ____ = 9
5Subtract 9 from 14: 14 − 9 = 5.
12 questions · Seed 43 · 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: 36 − ____ = 9
2. Find the missing number: 37 − ____ = 12
3. Find the missing number: 9 − ____ = 5
4. Find the missing number: 50 − ____ = 30
5. Find the missing number: 48 − ____ = 28
6. Find the missing number: 35 − ____ = 4
7. Find the missing number: 39 − ____ = 25
8. Find the missing number: 73 − ____ = 38
9. Find the missing number: 60 − ____ = 27
10. Find the missing number: 42 − ____ = 34
11. Find the missing number: 43 − ____ = 20
12. Find the missing number: 14 − ____ = 9
12 questions · Seed 43 · 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: 36 − ____ = 9
27Subtract 9 from 36: 36 − 9 = 27.
2. Find the missing number: 37 − ____ = 12
25Subtract 12 from 37: 37 − 12 = 25.
3. Find the missing number: 9 − ____ = 5
4Subtract 5 from 9: 9 − 5 = 4.
4. Find the missing number: 50 − ____ = 30
20Subtract 30 from 50: 50 − 30 = 20.
5. Find the missing number: 48 − ____ = 28
20Subtract 28 from 48: 48 − 28 = 20.
6. Find the missing number: 35 − ____ = 4
31Subtract 4 from 35: 35 − 4 = 31.
7. Find the missing number: 39 − ____ = 25
14Subtract 25 from 39: 39 − 25 = 14.
8. Find the missing number: 73 − ____ = 38
35Subtract 38 from 73: 73 − 38 = 35.
9. Find the missing number: 60 − ____ = 27
33Subtract 27 from 60: 60 − 27 = 33.
10. Find the missing number: 42 − ____ = 34
8Subtract 34 from 42: 42 − 34 = 8.
11. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
12. Find the missing number: 14 − ____ = 9
5Subtract 9 from 14: 14 − 9 = 5.
12 questions · Seed 43 · Age guidance, not curriculum certification