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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: 44 − ____ = 30
2. Find the missing number: 37 − ____ = 34
3. Find the missing number: 10 − ____ = 7
4. Find the missing number: 60 − ____ = 40
5. Find the missing number: 33 − ____ = 5
6. Find the missing number: 12 − ____ = 5
7. Find the missing number: 34 − ____ = 29
8. Find the missing number: 51 − ____ = 30
9. Find the missing number: 45 − ____ = 35
10. Find the missing number: 46 − ____ = 40
11. Find the missing number: 13 − ____ = 10
12. Find the missing number: 42 − ____ = 9
12 questions · Seed 104730 · 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: 44 − ____ = 30
14Subtract 30 from 44: 44 − 30 = 14.
2. Find the missing number: 37 − ____ = 34
3Subtract 34 from 37: 37 − 34 = 3.
3. Find the missing number: 10 − ____ = 7
3Subtract 7 from 10: 10 − 7 = 3.
4. Find the missing number: 60 − ____ = 40
20Subtract 40 from 60: 60 − 40 = 20.
5. Find the missing number: 33 − ____ = 5
28Subtract 5 from 33: 33 − 5 = 28.
6. Find the missing number: 12 − ____ = 5
7Subtract 5 from 12: 12 − 5 = 7.
7. Find the missing number: 34 − ____ = 29
5Subtract 29 from 34: 34 − 29 = 5.
8. Find the missing number: 51 − ____ = 30
21Subtract 30 from 51: 51 − 30 = 21.
9. Find the missing number: 45 − ____ = 35
10Subtract 35 from 45: 45 − 35 = 10.
10. Find the missing number: 46 − ____ = 40
6Subtract 40 from 46: 46 − 40 = 6.
11. Find the missing number: 13 − ____ = 10
3Subtract 10 from 13: 13 − 10 = 3.
12. Find the missing number: 42 − ____ = 9
33Subtract 9 from 42: 42 − 9 = 33.
12 questions · Seed 104730 · 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: 44 − ____ = 30
2. Find the missing number: 37 − ____ = 34
3. Find the missing number: 10 − ____ = 7
4. Find the missing number: 60 − ____ = 40
5. Find the missing number: 33 − ____ = 5
6. Find the missing number: 12 − ____ = 5
7. Find the missing number: 34 − ____ = 29
8. Find the missing number: 51 − ____ = 30
9. Find the missing number: 45 − ____ = 35
10. Find the missing number: 46 − ____ = 40
11. Find the missing number: 13 − ____ = 10
12. Find the missing number: 42 − ____ = 9
12 questions · Seed 104730 · 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: 44 − ____ = 30
14Subtract 30 from 44: 44 − 30 = 14.
2. Find the missing number: 37 − ____ = 34
3Subtract 34 from 37: 37 − 34 = 3.
3. Find the missing number: 10 − ____ = 7
3Subtract 7 from 10: 10 − 7 = 3.
4. Find the missing number: 60 − ____ = 40
20Subtract 40 from 60: 60 − 40 = 20.
5. Find the missing number: 33 − ____ = 5
28Subtract 5 from 33: 33 − 5 = 28.
6. Find the missing number: 12 − ____ = 5
7Subtract 5 from 12: 12 − 5 = 7.
7. Find the missing number: 34 − ____ = 29
5Subtract 29 from 34: 34 − 29 = 5.
8. Find the missing number: 51 − ____ = 30
21Subtract 30 from 51: 51 − 30 = 21.
9. Find the missing number: 45 − ____ = 35
10Subtract 35 from 45: 45 − 35 = 10.
10. Find the missing number: 46 − ____ = 40
6Subtract 40 from 46: 46 − 40 = 6.
11. Find the missing number: 13 − ____ = 10
3Subtract 10 from 13: 13 − 10 = 3.
12. Find the missing number: 42 − ____ = 9
33Subtract 9 from 42: 42 − 9 = 33.
12 questions · Seed 104730 · Age guidance, not curriculum certification