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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 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 42 − ____ = 26
2. Find the missing number: 30 − ____ = 19
3. Find the missing number: 33 − ____ = 18
4. Find the missing number: 45 − ____ = 16
5. Find the missing number: 34 − ____ = 24
6. Find the missing number: 39 − ____ = 16
7. Find the missing number: 53 − ____ = 24
8. Find the missing number: 28 − ____ = 21
9. Find the missing number: 40 − ____ = 11
10. Find the missing number: 47 − ____ = 32
11. Find the missing number: 40 − ____ = 19
12. Find the missing number: 29 − ____ = 5
12 questions · Seed 58 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 42 − ____ = 26
16Subtract 26 from 42: 42 − 26 = 16.
2. Find the missing number: 30 − ____ = 19
11Subtract 19 from 30: 30 − 19 = 11.
3. Find the missing number: 33 − ____ = 18
15Subtract 18 from 33: 33 − 18 = 15.
4. Find the missing number: 45 − ____ = 16
29Subtract 16 from 45: 45 − 16 = 29.
5. Find the missing number: 34 − ____ = 24
10Subtract 24 from 34: 34 − 24 = 10.
6. Find the missing number: 39 − ____ = 16
23Subtract 16 from 39: 39 − 16 = 23.
7. Find the missing number: 53 − ____ = 24
29Subtract 24 from 53: 53 − 24 = 29.
8. Find the missing number: 28 − ____ = 21
7Subtract 21 from 28: 28 − 21 = 7.
9. Find the missing number: 40 − ____ = 11
29Subtract 11 from 40: 40 − 11 = 29.
10. Find the missing number: 47 − ____ = 32
15Subtract 32 from 47: 47 − 32 = 15.
11. Find the missing number: 40 − ____ = 19
21Subtract 19 from 40: 40 − 19 = 21.
12. Find the missing number: 29 − ____ = 5
24Subtract 5 from 29: 29 − 5 = 24.
12 questions · Seed 58 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Missing number in subtraction
Take your time. Show your thinking.
1. Find the missing number: 42 − ____ = 26
2. Find the missing number: 30 − ____ = 19
3. Find the missing number: 33 − ____ = 18
4. Find the missing number: 45 − ____ = 16
5. Find the missing number: 34 − ____ = 24
6. Find the missing number: 39 − ____ = 16
7. Find the missing number: 53 − ____ = 24
8. Find the missing number: 28 − ____ = 21
9. Find the missing number: 40 − ____ = 11
10. Find the missing number: 47 − ____ = 32
11. Find the missing number: 40 − ____ = 19
12. Find the missing number: 29 − ____ = 5
12 questions · Seed 58 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Missing number in subtraction
Answers and reasoning. Review before teaching.
1. Find the missing number: 42 − ____ = 26
16Subtract 26 from 42: 42 − 26 = 16.
2. Find the missing number: 30 − ____ = 19
11Subtract 19 from 30: 30 − 19 = 11.
3. Find the missing number: 33 − ____ = 18
15Subtract 18 from 33: 33 − 18 = 15.
4. Find the missing number: 45 − ____ = 16
29Subtract 16 from 45: 45 − 16 = 29.
5. Find the missing number: 34 − ____ = 24
10Subtract 24 from 34: 34 − 24 = 10.
6. Find the missing number: 39 − ____ = 16
23Subtract 16 from 39: 39 − 16 = 23.
7. Find the missing number: 53 − ____ = 24
29Subtract 24 from 53: 53 − 24 = 29.
8. Find the missing number: 28 − ____ = 21
7Subtract 21 from 28: 28 − 21 = 7.
9. Find the missing number: 40 − ____ = 11
29Subtract 11 from 40: 40 − 11 = 29.
10. Find the missing number: 47 − ____ = 32
15Subtract 32 from 47: 47 − 32 = 15.
11. Find the missing number: 40 − ____ = 19
21Subtract 19 from 40: 40 − 19 = 21.
12. Find the missing number: 29 − ____ = 5
24Subtract 5 from 29: 29 − 5 = 24.
12 questions · Seed 58 · Age guidance, not curriculum certification