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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: 32 − ____ = 24
2. Find the missing number: 30 − ____ = 25
3. Find the missing number: 43 − ____ = 20
4. Find the missing number: 46 − ____ = 18
5. Find the missing number: 62 − ____ = 38
6. Find the missing number: 45 − ____ = 12
7. Find the missing number: 52 − ____ = 25
8. Find the missing number: 42 − ____ = 8
9. Find the missing number: 35 − ____ = 4
10. Find the missing number: 54 − ____ = 31
11. Find the missing number: 50 − ____ = 35
12. Find the missing number: 62 − ____ = 29
12 questions · Seed 75 · 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: 32 − ____ = 24
8Subtract 24 from 32: 32 − 24 = 8.
2. Find the missing number: 30 − ____ = 25
5Subtract 25 from 30: 30 − 25 = 5.
3. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
4. Find the missing number: 46 − ____ = 18
28Subtract 18 from 46: 46 − 18 = 28.
5. Find the missing number: 62 − ____ = 38
24Subtract 38 from 62: 62 − 38 = 24.
6. Find the missing number: 45 − ____ = 12
33Subtract 12 from 45: 45 − 12 = 33.
7. Find the missing number: 52 − ____ = 25
27Subtract 25 from 52: 52 − 25 = 27.
8. Find the missing number: 42 − ____ = 8
34Subtract 8 from 42: 42 − 8 = 34.
9. Find the missing number: 35 − ____ = 4
31Subtract 4 from 35: 35 − 4 = 31.
10. Find the missing number: 54 − ____ = 31
23Subtract 31 from 54: 54 − 31 = 23.
11. Find the missing number: 50 − ____ = 35
15Subtract 35 from 50: 50 − 35 = 15.
12. Find the missing number: 62 − ____ = 29
33Subtract 29 from 62: 62 − 29 = 33.
12 questions · Seed 75 · 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: 32 − ____ = 24
2. Find the missing number: 30 − ____ = 25
3. Find the missing number: 43 − ____ = 20
4. Find the missing number: 46 − ____ = 18
5. Find the missing number: 62 − ____ = 38
6. Find the missing number: 45 − ____ = 12
7. Find the missing number: 52 − ____ = 25
8. Find the missing number: 42 − ____ = 8
9. Find the missing number: 35 − ____ = 4
10. Find the missing number: 54 − ____ = 31
11. Find the missing number: 50 − ____ = 35
12. Find the missing number: 62 − ____ = 29
12 questions · Seed 75 · 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: 32 − ____ = 24
8Subtract 24 from 32: 32 − 24 = 8.
2. Find the missing number: 30 − ____ = 25
5Subtract 25 from 30: 30 − 25 = 5.
3. Find the missing number: 43 − ____ = 20
23Subtract 20 from 43: 43 − 20 = 23.
4. Find the missing number: 46 − ____ = 18
28Subtract 18 from 46: 46 − 18 = 28.
5. Find the missing number: 62 − ____ = 38
24Subtract 38 from 62: 62 − 38 = 24.
6. Find the missing number: 45 − ____ = 12
33Subtract 12 from 45: 45 − 12 = 33.
7. Find the missing number: 52 − ____ = 25
27Subtract 25 from 52: 52 − 25 = 27.
8. Find the missing number: 42 − ____ = 8
34Subtract 8 from 42: 42 − 8 = 34.
9. Find the missing number: 35 − ____ = 4
31Subtract 4 from 35: 35 − 4 = 31.
10. Find the missing number: 54 − ____ = 31
23Subtract 31 from 54: 54 − 31 = 23.
11. Find the missing number: 50 − ____ = 35
15Subtract 35 from 50: 50 − 35 = 15.
12. Find the missing number: 62 − ____ = 29
33Subtract 29 from 62: 62 − 29 = 33.
12 questions · Seed 75 · Age guidance, not curriculum certification