Back to worksheetsMathsAges 10-12
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: 15 − ____ = 10
2. Find the missing number: 36 − ____ = 14
3. Find the missing number: 39 − ____ = 10
4. Find the missing number: 25 − ____ = 8
5. Find the missing number: 13 − ____ = 4
6. Find the missing number: 30 − ____ = 11
7. Find the missing number: 46 − ____ = 17
8. Find the missing number: 46 − ____ = 13
9. Find the missing number: 44 − ____ = 39
10. Find the missing number: 43 − ____ = 26
11. Find the missing number: 67 − ____ = 37
12. Find the missing number: 35 − ____ = 6
12 questions · Seed 104742 · 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: 15 − ____ = 10
5Subtract 10 from 15: 15 − 10 = 5.
2. Find the missing number: 36 − ____ = 14
22Subtract 14 from 36: 36 − 14 = 22.
3. Find the missing number: 39 − ____ = 10
29Subtract 10 from 39: 39 − 10 = 29.
4. Find the missing number: 25 − ____ = 8
17Subtract 8 from 25: 25 − 8 = 17.
5. Find the missing number: 13 − ____ = 4
9Subtract 4 from 13: 13 − 4 = 9.
6. Find the missing number: 30 − ____ = 11
19Subtract 11 from 30: 30 − 11 = 19.
7. Find the missing number: 46 − ____ = 17
29Subtract 17 from 46: 46 − 17 = 29.
8. Find the missing number: 46 − ____ = 13
33Subtract 13 from 46: 46 − 13 = 33.
9. Find the missing number: 44 − ____ = 39
5Subtract 39 from 44: 44 − 39 = 5.
10. Find the missing number: 43 − ____ = 26
17Subtract 26 from 43: 43 − 26 = 17.
11. Find the missing number: 67 − ____ = 37
30Subtract 37 from 67: 67 − 37 = 30.
12. Find the missing number: 35 − ____ = 6
29Subtract 6 from 35: 35 − 6 = 29.
12 questions · Seed 104742 · 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: 15 − ____ = 10
2. Find the missing number: 36 − ____ = 14
3. Find the missing number: 39 − ____ = 10
4. Find the missing number: 25 − ____ = 8
5. Find the missing number: 13 − ____ = 4
6. Find the missing number: 30 − ____ = 11
7. Find the missing number: 46 − ____ = 17
8. Find the missing number: 46 − ____ = 13
9. Find the missing number: 44 − ____ = 39
10. Find the missing number: 43 − ____ = 26
11. Find the missing number: 67 − ____ = 37
12. Find the missing number: 35 − ____ = 6
12 questions · Seed 104742 · 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: 15 − ____ = 10
5Subtract 10 from 15: 15 − 10 = 5.
2. Find the missing number: 36 − ____ = 14
22Subtract 14 from 36: 36 − 14 = 22.
3. Find the missing number: 39 − ____ = 10
29Subtract 10 from 39: 39 − 10 = 29.
4. Find the missing number: 25 − ____ = 8
17Subtract 8 from 25: 25 − 8 = 17.
5. Find the missing number: 13 − ____ = 4
9Subtract 4 from 13: 13 − 4 = 9.
6. Find the missing number: 30 − ____ = 11
19Subtract 11 from 30: 30 − 11 = 19.
7. Find the missing number: 46 − ____ = 17
29Subtract 17 from 46: 46 − 17 = 29.
8. Find the missing number: 46 − ____ = 13
33Subtract 13 from 46: 46 − 13 = 33.
9. Find the missing number: 44 − ____ = 39
5Subtract 39 from 44: 44 − 39 = 5.
10. Find the missing number: 43 − ____ = 26
17Subtract 26 from 43: 43 − 26 = 17.
11. Find the missing number: 67 − ____ = 37
30Subtract 37 from 67: 67 − 37 = 30.
12. Find the missing number: 35 − ____ = 6
29Subtract 6 from 35: 35 − 6 = 29.
12 questions · Seed 104742 · Age guidance, not curriculum certification