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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: 51 − ____ = 35
2. Find the missing number: 69 − ____ = 38
3. Find the missing number: 22 − ____ = 14
4. Find the missing number: 65 − ____ = 37
5. Find the missing number: 16 − ____ = 5
6. Find the missing number: 28 − ____ = 10
7. Find the missing number: 42 − ____ = 13
8. Find the missing number: 40 − ____ = 34
9. Find the missing number: 33 − ____ = 8
10. Find the missing number: 53 − ____ = 32
11. Find the missing number: 17 − ____ = 8
12. Find the missing number: 38 − ____ = 10
12 questions · Seed 79 · 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: 51 − ____ = 35
16Subtract 35 from 51: 51 − 35 = 16.
2. Find the missing number: 69 − ____ = 38
31Subtract 38 from 69: 69 − 38 = 31.
3. Find the missing number: 22 − ____ = 14
8Subtract 14 from 22: 22 − 14 = 8.
4. Find the missing number: 65 − ____ = 37
28Subtract 37 from 65: 65 − 37 = 28.
5. Find the missing number: 16 − ____ = 5
11Subtract 5 from 16: 16 − 5 = 11.
6. Find the missing number: 28 − ____ = 10
18Subtract 10 from 28: 28 − 10 = 18.
7. Find the missing number: 42 − ____ = 13
29Subtract 13 from 42: 42 − 13 = 29.
8. Find the missing number: 40 − ____ = 34
6Subtract 34 from 40: 40 − 34 = 6.
9. Find the missing number: 33 − ____ = 8
25Subtract 8 from 33: 33 − 8 = 25.
10. Find the missing number: 53 − ____ = 32
21Subtract 32 from 53: 53 − 32 = 21.
11. Find the missing number: 17 − ____ = 8
9Subtract 8 from 17: 17 − 8 = 9.
12. Find the missing number: 38 − ____ = 10
28Subtract 10 from 38: 38 − 10 = 28.
12 questions · Seed 79 · 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: 51 − ____ = 35
2. Find the missing number: 69 − ____ = 38
3. Find the missing number: 22 − ____ = 14
4. Find the missing number: 65 − ____ = 37
5. Find the missing number: 16 − ____ = 5
6. Find the missing number: 28 − ____ = 10
7. Find the missing number: 42 − ____ = 13
8. Find the missing number: 40 − ____ = 34
9. Find the missing number: 33 − ____ = 8
10. Find the missing number: 53 − ____ = 32
11. Find the missing number: 17 − ____ = 8
12. Find the missing number: 38 − ____ = 10
12 questions · Seed 79 · 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: 51 − ____ = 35
16Subtract 35 from 51: 51 − 35 = 16.
2. Find the missing number: 69 − ____ = 38
31Subtract 38 from 69: 69 − 38 = 31.
3. Find the missing number: 22 − ____ = 14
8Subtract 14 from 22: 22 − 14 = 8.
4. Find the missing number: 65 − ____ = 37
28Subtract 37 from 65: 65 − 37 = 28.
5. Find the missing number: 16 − ____ = 5
11Subtract 5 from 16: 16 − 5 = 11.
6. Find the missing number: 28 − ____ = 10
18Subtract 10 from 28: 28 − 10 = 18.
7. Find the missing number: 42 − ____ = 13
29Subtract 13 from 42: 42 − 13 = 29.
8. Find the missing number: 40 − ____ = 34
6Subtract 34 from 40: 40 − 34 = 6.
9. Find the missing number: 33 − ____ = 8
25Subtract 8 from 33: 33 − 8 = 25.
10. Find the missing number: 53 − ____ = 32
21Subtract 32 from 53: 53 − 32 = 21.
11. Find the missing number: 17 − ____ = 8
9Subtract 8 from 17: 17 − 8 = 9.
12. Find the missing number: 38 − ____ = 10
28Subtract 10 from 38: 38 − 10 = 28.
12 questions · Seed 79 · Age guidance, not curriculum certification