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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 − ____ = 40
2. Find the missing number: 63 − ____ = 35
3. Find the missing number: 24 − ____ = 6
4. Find the missing number: 33 − ____ = 26
5. Find the missing number: 52 − ____ = 35
6. Find the missing number: 48 − ____ = 20
7. Find the missing number: 45 − ____ = 17
8. Find the missing number: 45 − ____ = 13
9. Find the missing number: 31 − ____ = 28
10. Find the missing number: 49 − ____ = 38
11. Find the missing number: 26 − ____ = 20
12. Find the missing number: 37 − ____ = 26
12 questions · Seed 104756 · 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 − ____ = 40
25Subtract 40 from 65: 65 − 40 = 25.
2. Find the missing number: 63 − ____ = 35
28Subtract 35 from 63: 63 − 35 = 28.
3. Find the missing number: 24 − ____ = 6
18Subtract 6 from 24: 24 − 6 = 18.
4. Find the missing number: 33 − ____ = 26
7Subtract 26 from 33: 33 − 26 = 7.
5. Find the missing number: 52 − ____ = 35
17Subtract 35 from 52: 52 − 35 = 17.
6. Find the missing number: 48 − ____ = 20
28Subtract 20 from 48: 48 − 20 = 28.
7. Find the missing number: 45 − ____ = 17
28Subtract 17 from 45: 45 − 17 = 28.
8. Find the missing number: 45 − ____ = 13
32Subtract 13 from 45: 45 − 13 = 32.
9. Find the missing number: 31 − ____ = 28
3Subtract 28 from 31: 31 − 28 = 3.
10. Find the missing number: 49 − ____ = 38
11Subtract 38 from 49: 49 − 38 = 11.
11. Find the missing number: 26 − ____ = 20
6Subtract 20 from 26: 26 − 20 = 6.
12. Find the missing number: 37 − ____ = 26
11Subtract 26 from 37: 37 − 26 = 11.
12 questions · Seed 104756 · 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 − ____ = 40
2. Find the missing number: 63 − ____ = 35
3. Find the missing number: 24 − ____ = 6
4. Find the missing number: 33 − ____ = 26
5. Find the missing number: 52 − ____ = 35
6. Find the missing number: 48 − ____ = 20
7. Find the missing number: 45 − ____ = 17
8. Find the missing number: 45 − ____ = 13
9. Find the missing number: 31 − ____ = 28
10. Find the missing number: 49 − ____ = 38
11. Find the missing number: 26 − ____ = 20
12. Find the missing number: 37 − ____ = 26
12 questions · Seed 104756 · 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 − ____ = 40
25Subtract 40 from 65: 65 − 40 = 25.
2. Find the missing number: 63 − ____ = 35
28Subtract 35 from 63: 63 − 35 = 28.
3. Find the missing number: 24 − ____ = 6
18Subtract 6 from 24: 24 − 6 = 18.
4. Find the missing number: 33 − ____ = 26
7Subtract 26 from 33: 33 − 26 = 7.
5. Find the missing number: 52 − ____ = 35
17Subtract 35 from 52: 52 − 35 = 17.
6. Find the missing number: 48 − ____ = 20
28Subtract 20 from 48: 48 − 20 = 28.
7. Find the missing number: 45 − ____ = 17
28Subtract 17 from 45: 45 − 17 = 28.
8. Find the missing number: 45 − ____ = 13
32Subtract 13 from 45: 45 − 13 = 32.
9. Find the missing number: 31 − ____ = 28
3Subtract 28 from 31: 31 − 28 = 3.
10. Find the missing number: 49 − ____ = 38
11Subtract 38 from 49: 49 − 38 = 11.
11. Find the missing number: 26 − ____ = 20
6Subtract 20 from 26: 26 − 20 = 6.
12. Find the missing number: 37 − ____ = 26
11Subtract 26 from 37: 37 − 26 = 11.
12 questions · Seed 104756 · Age guidance, not curriculum certification