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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: 63 − ____ = 34
2. Find the missing number: 34 − ____ = 26
3. Find the missing number: 25 − ____ = 15
4. Find the missing number: 54 − ____ = 33
5. Find the missing number: 32 − ____ = 5
6. Find the missing number: 54 − ____ = 30
7. Find the missing number: 28 − ____ = 6
8. Find the missing number: 23 − ____ = 13
9. Find the missing number: 55 − ____ = 23
10. Find the missing number: 63 − ____ = 39
11. Find the missing number: 54 − ____ = 19
12. Find the missing number: 37 − ____ = 30
12 questions · Seed 104777 · 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: 63 − ____ = 34
29Subtract 34 from 63: 63 − 34 = 29.
2. Find the missing number: 34 − ____ = 26
8Subtract 26 from 34: 34 − 26 = 8.
3. Find the missing number: 25 − ____ = 15
10Subtract 15 from 25: 25 − 15 = 10.
4. Find the missing number: 54 − ____ = 33
21Subtract 33 from 54: 54 − 33 = 21.
5. Find the missing number: 32 − ____ = 5
27Subtract 5 from 32: 32 − 5 = 27.
6. Find the missing number: 54 − ____ = 30
24Subtract 30 from 54: 54 − 30 = 24.
7. Find the missing number: 28 − ____ = 6
22Subtract 6 from 28: 28 − 6 = 22.
8. Find the missing number: 23 − ____ = 13
10Subtract 13 from 23: 23 − 13 = 10.
9. Find the missing number: 55 − ____ = 23
32Subtract 23 from 55: 55 − 23 = 32.
10. Find the missing number: 63 − ____ = 39
24Subtract 39 from 63: 63 − 39 = 24.
11. Find the missing number: 54 − ____ = 19
35Subtract 19 from 54: 54 − 19 = 35.
12. Find the missing number: 37 − ____ = 30
7Subtract 30 from 37: 37 − 30 = 7.
12 questions · Seed 104777 · 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: 63 − ____ = 34
2. Find the missing number: 34 − ____ = 26
3. Find the missing number: 25 − ____ = 15
4. Find the missing number: 54 − ____ = 33
5. Find the missing number: 32 − ____ = 5
6. Find the missing number: 54 − ____ = 30
7. Find the missing number: 28 − ____ = 6
8. Find the missing number: 23 − ____ = 13
9. Find the missing number: 55 − ____ = 23
10. Find the missing number: 63 − ____ = 39
11. Find the missing number: 54 − ____ = 19
12. Find the missing number: 37 − ____ = 30
12 questions · Seed 104777 · 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: 63 − ____ = 34
29Subtract 34 from 63: 63 − 34 = 29.
2. Find the missing number: 34 − ____ = 26
8Subtract 26 from 34: 34 − 26 = 8.
3. Find the missing number: 25 − ____ = 15
10Subtract 15 from 25: 25 − 15 = 10.
4. Find the missing number: 54 − ____ = 33
21Subtract 33 from 54: 54 − 33 = 21.
5. Find the missing number: 32 − ____ = 5
27Subtract 5 from 32: 32 − 5 = 27.
6. Find the missing number: 54 − ____ = 30
24Subtract 30 from 54: 54 − 30 = 24.
7. Find the missing number: 28 − ____ = 6
22Subtract 6 from 28: 28 − 6 = 22.
8. Find the missing number: 23 − ____ = 13
10Subtract 13 from 23: 23 − 13 = 10.
9. Find the missing number: 55 − ____ = 23
32Subtract 23 from 55: 55 − 23 = 32.
10. Find the missing number: 63 − ____ = 39
24Subtract 39 from 63: 63 − 39 = 24.
11. Find the missing number: 54 − ____ = 19
35Subtract 19 from 54: 54 − 19 = 35.
12. Find the missing number: 37 − ____ = 30
7Subtract 30 from 37: 37 − 30 = 7.
12 questions · Seed 104777 · Age guidance, not curriculum certification