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: 45 − ____ = 32
2. Find the missing number: 31 − ____ = 9
3. Find the missing number: 41 − ____ = 7
4. Find the missing number: 23 − ____ = 14
5. Find the missing number: 28 − ____ = 22
6. Find the missing number: 28 − ____ = 6
7. Find the missing number: 45 − ____ = 14
8. Find the missing number: 47 − ____ = 33
9. Find the missing number: 42 − ____ = 27
10. Find the missing number: 53 − ____ = 36
11. Find the missing number: 14 − ____ = 9
12. Find the missing number: 40 − ____ = 31
12 questions · Seed 51 · 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: 45 − ____ = 32
13Subtract 32 from 45: 45 − 32 = 13.
2. Find the missing number: 31 − ____ = 9
22Subtract 9 from 31: 31 − 9 = 22.
3. Find the missing number: 41 − ____ = 7
34Subtract 7 from 41: 41 − 7 = 34.
4. Find the missing number: 23 − ____ = 14
9Subtract 14 from 23: 23 − 14 = 9.
5. Find the missing number: 28 − ____ = 22
6Subtract 22 from 28: 28 − 22 = 6.
6. Find the missing number: 28 − ____ = 6
22Subtract 6 from 28: 28 − 6 = 22.
7. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
8. Find the missing number: 47 − ____ = 33
14Subtract 33 from 47: 47 − 33 = 14.
9. Find the missing number: 42 − ____ = 27
15Subtract 27 from 42: 42 − 27 = 15.
10. Find the missing number: 53 − ____ = 36
17Subtract 36 from 53: 53 − 36 = 17.
11. Find the missing number: 14 − ____ = 9
5Subtract 9 from 14: 14 − 9 = 5.
12. Find the missing number: 40 − ____ = 31
9Subtract 31 from 40: 40 − 31 = 9.
12 questions · Seed 51 · 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: 45 − ____ = 32
2. Find the missing number: 31 − ____ = 9
3. Find the missing number: 41 − ____ = 7
4. Find the missing number: 23 − ____ = 14
5. Find the missing number: 28 − ____ = 22
6. Find the missing number: 28 − ____ = 6
7. Find the missing number: 45 − ____ = 14
8. Find the missing number: 47 − ____ = 33
9. Find the missing number: 42 − ____ = 27
10. Find the missing number: 53 − ____ = 36
11. Find the missing number: 14 − ____ = 9
12. Find the missing number: 40 − ____ = 31
12 questions · Seed 51 · 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: 45 − ____ = 32
13Subtract 32 from 45: 45 − 32 = 13.
2. Find the missing number: 31 − ____ = 9
22Subtract 9 from 31: 31 − 9 = 22.
3. Find the missing number: 41 − ____ = 7
34Subtract 7 from 41: 41 − 7 = 34.
4. Find the missing number: 23 − ____ = 14
9Subtract 14 from 23: 23 − 14 = 9.
5. Find the missing number: 28 − ____ = 22
6Subtract 22 from 28: 28 − 22 = 6.
6. Find the missing number: 28 − ____ = 6
22Subtract 6 from 28: 28 − 6 = 22.
7. Find the missing number: 45 − ____ = 14
31Subtract 14 from 45: 45 − 14 = 31.
8. Find the missing number: 47 − ____ = 33
14Subtract 33 from 47: 47 − 33 = 14.
9. Find the missing number: 42 − ____ = 27
15Subtract 27 from 42: 42 − 27 = 15.
10. Find the missing number: 53 − ____ = 36
17Subtract 36 from 53: 53 − 36 = 17.
11. Find the missing number: 14 − ____ = 9
5Subtract 9 from 14: 14 − 9 = 5.
12. Find the missing number: 40 − ____ = 31
9Subtract 31 from 40: 40 − 31 = 9.
12 questions · Seed 51 · Age guidance, not curriculum certification