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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: 54 − ____ = 34
2. Find the missing number: 34 − ____ = 31
3. Find the missing number: 35 − ____ = 5
4. Find the missing number: 38 − ____ = 20
5. Find the missing number: 66 − ____ = 35
6. Find the missing number: 53 − ____ = 25
7. Find the missing number: 39 − ____ = 26
8. Find the missing number: 62 − ____ = 40
9. Find the missing number: 53 − ____ = 38
10. Find the missing number: 57 − ____ = 40
11. Find the missing number: 51 − ____ = 39
12. Find the missing number: 69 − ____ = 38
12 questions · Seed 46 · 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: 54 − ____ = 34
20Subtract 34 from 54: 54 − 34 = 20.
2. Find the missing number: 34 − ____ = 31
3Subtract 31 from 34: 34 − 31 = 3.
3. Find the missing number: 35 − ____ = 5
30Subtract 5 from 35: 35 − 5 = 30.
4. Find the missing number: 38 − ____ = 20
18Subtract 20 from 38: 38 − 20 = 18.
5. Find the missing number: 66 − ____ = 35
31Subtract 35 from 66: 66 − 35 = 31.
6. Find the missing number: 53 − ____ = 25
28Subtract 25 from 53: 53 − 25 = 28.
7. Find the missing number: 39 − ____ = 26
13Subtract 26 from 39: 39 − 26 = 13.
8. Find the missing number: 62 − ____ = 40
22Subtract 40 from 62: 62 − 40 = 22.
9. Find the missing number: 53 − ____ = 38
15Subtract 38 from 53: 53 − 38 = 15.
10. Find the missing number: 57 − ____ = 40
17Subtract 40 from 57: 57 − 40 = 17.
11. Find the missing number: 51 − ____ = 39
12Subtract 39 from 51: 51 − 39 = 12.
12. Find the missing number: 69 − ____ = 38
31Subtract 38 from 69: 69 − 38 = 31.
12 questions · Seed 46 · 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: 54 − ____ = 34
2. Find the missing number: 34 − ____ = 31
3. Find the missing number: 35 − ____ = 5
4. Find the missing number: 38 − ____ = 20
5. Find the missing number: 66 − ____ = 35
6. Find the missing number: 53 − ____ = 25
7. Find the missing number: 39 − ____ = 26
8. Find the missing number: 62 − ____ = 40
9. Find the missing number: 53 − ____ = 38
10. Find the missing number: 57 − ____ = 40
11. Find the missing number: 51 − ____ = 39
12. Find the missing number: 69 − ____ = 38
12 questions · Seed 46 · 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: 54 − ____ = 34
20Subtract 34 from 54: 54 − 34 = 20.
2. Find the missing number: 34 − ____ = 31
3Subtract 31 from 34: 34 − 31 = 3.
3. Find the missing number: 35 − ____ = 5
30Subtract 5 from 35: 35 − 5 = 30.
4. Find the missing number: 38 − ____ = 20
18Subtract 20 from 38: 38 − 20 = 18.
5. Find the missing number: 66 − ____ = 35
31Subtract 35 from 66: 66 − 35 = 31.
6. Find the missing number: 53 − ____ = 25
28Subtract 25 from 53: 53 − 25 = 28.
7. Find the missing number: 39 − ____ = 26
13Subtract 26 from 39: 39 − 26 = 13.
8. Find the missing number: 62 − ____ = 40
22Subtract 40 from 62: 62 − 40 = 22.
9. Find the missing number: 53 − ____ = 38
15Subtract 38 from 53: 53 − 38 = 15.
10. Find the missing number: 57 − ____ = 40
17Subtract 40 from 57: 57 − 40 = 17.
11. Find the missing number: 51 − ____ = 39
12Subtract 39 from 51: 51 − 39 = 12.
12. Find the missing number: 69 − ____ = 38
31Subtract 38 from 69: 69 − 38 = 31.
12 questions · Seed 46 · Age guidance, not curriculum certification