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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 − ____ = 19
2. Find the missing number: 40 − ____ = 29
3. Find the missing number: 59 − ____ = 40
4. Find the missing number: 40 − ____ = 14
5. Find the missing number: 51 − ____ = 22
6. Find the missing number: 28 − ____ = 15
7. Find the missing number: 50 − ____ = 24
8. Find the missing number: 42 − ____ = 32
9. Find the missing number: 23 − ____ = 18
10. Find the missing number: 17 − ____ = 14
11. Find the missing number: 44 − ____ = 10
12. Find the missing number: 42 − ____ = 38
12 questions · Seed 99 · 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 − ____ = 19
25Subtract 19 from 44: 44 − 19 = 25.
2. Find the missing number: 40 − ____ = 29
11Subtract 29 from 40: 40 − 29 = 11.
3. Find the missing number: 59 − ____ = 40
19Subtract 40 from 59: 59 − 40 = 19.
4. Find the missing number: 40 − ____ = 14
26Subtract 14 from 40: 40 − 14 = 26.
5. Find the missing number: 51 − ____ = 22
29Subtract 22 from 51: 51 − 22 = 29.
6. Find the missing number: 28 − ____ = 15
13Subtract 15 from 28: 28 − 15 = 13.
7. Find the missing number: 50 − ____ = 24
26Subtract 24 from 50: 50 − 24 = 26.
8. Find the missing number: 42 − ____ = 32
10Subtract 32 from 42: 42 − 32 = 10.
9. Find the missing number: 23 − ____ = 18
5Subtract 18 from 23: 23 − 18 = 5.
10. Find the missing number: 17 − ____ = 14
3Subtract 14 from 17: 17 − 14 = 3.
11. Find the missing number: 44 − ____ = 10
34Subtract 10 from 44: 44 − 10 = 34.
12. Find the missing number: 42 − ____ = 38
4Subtract 38 from 42: 42 − 38 = 4.
12 questions · Seed 99 · 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 − ____ = 19
2. Find the missing number: 40 − ____ = 29
3. Find the missing number: 59 − ____ = 40
4. Find the missing number: 40 − ____ = 14
5. Find the missing number: 51 − ____ = 22
6. Find the missing number: 28 − ____ = 15
7. Find the missing number: 50 − ____ = 24
8. Find the missing number: 42 − ____ = 32
9. Find the missing number: 23 − ____ = 18
10. Find the missing number: 17 − ____ = 14
11. Find the missing number: 44 − ____ = 10
12. Find the missing number: 42 − ____ = 38
12 questions · Seed 99 · 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 − ____ = 19
25Subtract 19 from 44: 44 − 19 = 25.
2. Find the missing number: 40 − ____ = 29
11Subtract 29 from 40: 40 − 29 = 11.
3. Find the missing number: 59 − ____ = 40
19Subtract 40 from 59: 59 − 40 = 19.
4. Find the missing number: 40 − ____ = 14
26Subtract 14 from 40: 40 − 14 = 26.
5. Find the missing number: 51 − ____ = 22
29Subtract 22 from 51: 51 − 22 = 29.
6. Find the missing number: 28 − ____ = 15
13Subtract 15 from 28: 28 − 15 = 13.
7. Find the missing number: 50 − ____ = 24
26Subtract 24 from 50: 50 − 24 = 26.
8. Find the missing number: 42 − ____ = 32
10Subtract 32 from 42: 42 − 32 = 10.
9. Find the missing number: 23 − ____ = 18
5Subtract 18 from 23: 23 − 18 = 5.
10. Find the missing number: 17 − ____ = 14
3Subtract 14 from 17: 17 − 14 = 3.
11. Find the missing number: 44 − ____ = 10
34Subtract 10 from 44: 44 − 10 = 34.
12. Find the missing number: 42 − ____ = 38
4Subtract 38 from 42: 42 − 38 = 4.
12 questions · Seed 99 · Age guidance, not curriculum certification