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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: 65 − ____ = 30
2. Find the missing number: 64 − ____ = 34
3. Find the missing number: 52 − ____ = 21
4. Find the missing number: 38 − ____ = 8
5. Find the missing number: 25 − ____ = 11
6. Find the missing number: 69 − ____ = 35
7. Find the missing number: 46 − ____ = 17
8. Find the missing number: 50 − ____ = 24
9. Find the missing number: 44 − ____ = 22
10. Find the missing number: 65 − ____ = 31
11. Find the missing number: 36 − ____ = 32
12. Find the missing number: 48 − ____ = 24
12 questions · Seed 77 · 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: 65 − ____ = 30
35Subtract 30 from 65: 65 − 30 = 35.
2. Find the missing number: 64 − ____ = 34
30Subtract 34 from 64: 64 − 34 = 30.
3. Find the missing number: 52 − ____ = 21
31Subtract 21 from 52: 52 − 21 = 31.
4. Find the missing number: 38 − ____ = 8
30Subtract 8 from 38: 38 − 8 = 30.
5. Find the missing number: 25 − ____ = 11
14Subtract 11 from 25: 25 − 11 = 14.
6. Find the missing number: 69 − ____ = 35
34Subtract 35 from 69: 69 − 35 = 34.
7. Find the missing number: 46 − ____ = 17
29Subtract 17 from 46: 46 − 17 = 29.
8. Find the missing number: 50 − ____ = 24
26Subtract 24 from 50: 50 − 24 = 26.
9. Find the missing number: 44 − ____ = 22
22Subtract 22 from 44: 44 − 22 = 22.
10. Find the missing number: 65 − ____ = 31
34Subtract 31 from 65: 65 − 31 = 34.
11. Find the missing number: 36 − ____ = 32
4Subtract 32 from 36: 36 − 32 = 4.
12. Find the missing number: 48 − ____ = 24
24Subtract 24 from 48: 48 − 24 = 24.
12 questions · Seed 77 · 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: 65 − ____ = 30
2. Find the missing number: 64 − ____ = 34
3. Find the missing number: 52 − ____ = 21
4. Find the missing number: 38 − ____ = 8
5. Find the missing number: 25 − ____ = 11
6. Find the missing number: 69 − ____ = 35
7. Find the missing number: 46 − ____ = 17
8. Find the missing number: 50 − ____ = 24
9. Find the missing number: 44 − ____ = 22
10. Find the missing number: 65 − ____ = 31
11. Find the missing number: 36 − ____ = 32
12. Find the missing number: 48 − ____ = 24
12 questions · Seed 77 · 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: 65 − ____ = 30
35Subtract 30 from 65: 65 − 30 = 35.
2. Find the missing number: 64 − ____ = 34
30Subtract 34 from 64: 64 − 34 = 30.
3. Find the missing number: 52 − ____ = 21
31Subtract 21 from 52: 52 − 21 = 31.
4. Find the missing number: 38 − ____ = 8
30Subtract 8 from 38: 38 − 8 = 30.
5. Find the missing number: 25 − ____ = 11
14Subtract 11 from 25: 25 − 11 = 14.
6. Find the missing number: 69 − ____ = 35
34Subtract 35 from 69: 69 − 35 = 34.
7. Find the missing number: 46 − ____ = 17
29Subtract 17 from 46: 46 − 17 = 29.
8. Find the missing number: 50 − ____ = 24
26Subtract 24 from 50: 50 − 24 = 26.
9. Find the missing number: 44 − ____ = 22
22Subtract 22 from 44: 44 − 22 = 22.
10. Find the missing number: 65 − ____ = 31
34Subtract 31 from 65: 65 − 31 = 34.
11. Find the missing number: 36 − ____ = 32
4Subtract 32 from 36: 36 − 32 = 4.
12. Find the missing number: 48 − ____ = 24
24Subtract 24 from 48: 48 − 24 = 24.
12 questions · Seed 77 · Age guidance, not curriculum certification