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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: 54 − ____ = 29
2. Find the missing number: 15 − ____ = 10
3. Find the missing number: 34 − ____ = 19
4. Find the missing number: 30 − ____ = 27
5. Find the missing number: 42 − ____ = 35
6. Find the missing number: 31 − ____ = 26
7. Find the missing number: 16 − ____ = 13
8. Find the missing number: 35 − ____ = 31
9. Find the missing number: 39 − ____ = 36
10. Find the missing number: 40 − ____ = 34
11. Find the missing number: 44 − ____ = 34
12. Find the missing number: 33 − ____ = 25
12 questions · Seed 104772 · 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: 54 − ____ = 29
25Subtract 29 from 54: 54 − 29 = 25.
2. Find the missing number: 15 − ____ = 10
5Subtract 10 from 15: 15 − 10 = 5.
3. Find the missing number: 34 − ____ = 19
15Subtract 19 from 34: 34 − 19 = 15.
4. Find the missing number: 30 − ____ = 27
3Subtract 27 from 30: 30 − 27 = 3.
5. Find the missing number: 42 − ____ = 35
7Subtract 35 from 42: 42 − 35 = 7.
6. Find the missing number: 31 − ____ = 26
5Subtract 26 from 31: 31 − 26 = 5.
7. Find the missing number: 16 − ____ = 13
3Subtract 13 from 16: 16 − 13 = 3.
8. Find the missing number: 35 − ____ = 31
4Subtract 31 from 35: 35 − 31 = 4.
9. Find the missing number: 39 − ____ = 36
3Subtract 36 from 39: 39 − 36 = 3.
10. Find the missing number: 40 − ____ = 34
6Subtract 34 from 40: 40 − 34 = 6.
11. Find the missing number: 44 − ____ = 34
10Subtract 34 from 44: 44 − 34 = 10.
12. Find the missing number: 33 − ____ = 25
8Subtract 25 from 33: 33 − 25 = 8.
12 questions · Seed 104772 · 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: 54 − ____ = 29
2. Find the missing number: 15 − ____ = 10
3. Find the missing number: 34 − ____ = 19
4. Find the missing number: 30 − ____ = 27
5. Find the missing number: 42 − ____ = 35
6. Find the missing number: 31 − ____ = 26
7. Find the missing number: 16 − ____ = 13
8. Find the missing number: 35 − ____ = 31
9. Find the missing number: 39 − ____ = 36
10. Find the missing number: 40 − ____ = 34
11. Find the missing number: 44 − ____ = 34
12. Find the missing number: 33 − ____ = 25
12 questions · Seed 104772 · 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: 54 − ____ = 29
25Subtract 29 from 54: 54 − 29 = 25.
2. Find the missing number: 15 − ____ = 10
5Subtract 10 from 15: 15 − 10 = 5.
3. Find the missing number: 34 − ____ = 19
15Subtract 19 from 34: 34 − 19 = 15.
4. Find the missing number: 30 − ____ = 27
3Subtract 27 from 30: 30 − 27 = 3.
5. Find the missing number: 42 − ____ = 35
7Subtract 35 from 42: 42 − 35 = 7.
6. Find the missing number: 31 − ____ = 26
5Subtract 26 from 31: 31 − 26 = 5.
7. Find the missing number: 16 − ____ = 13
3Subtract 13 from 16: 16 − 13 = 3.
8. Find the missing number: 35 − ____ = 31
4Subtract 31 from 35: 35 − 31 = 4.
9. Find the missing number: 39 − ____ = 36
3Subtract 36 from 39: 39 − 36 = 3.
10. Find the missing number: 40 − ____ = 34
6Subtract 34 from 40: 40 − 34 = 6.
11. Find the missing number: 44 − ____ = 34
10Subtract 34 from 44: 44 − 34 = 10.
12. Find the missing number: 33 − ____ = 25
8Subtract 25 from 33: 33 − 25 = 8.
12 questions · Seed 104772 · Age guidance, not curriculum certification