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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: 51 − ____ = 18
2. Find the missing number: 69 − ____ = 34
3. Find the missing number: 22 − ____ = 16
4. Find the missing number: 41 − ____ = 19
5. Find the missing number: 14 − ____ = 4
6. Find the missing number: 48 − ____ = 26
7. Find the missing number: 20 − ____ = 6
8. Find the missing number: 52 − ____ = 17
9. Find the missing number: 54 − ____ = 31
10. Find the missing number: 33 − ____ = 30
11. Find the missing number: 68 − ____ = 40
12. Find the missing number: 49 − ____ = 35
12 questions · Seed 104752 · 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: 51 − ____ = 18
33Subtract 18 from 51: 51 − 18 = 33.
2. Find the missing number: 69 − ____ = 34
35Subtract 34 from 69: 69 − 34 = 35.
3. Find the missing number: 22 − ____ = 16
6Subtract 16 from 22: 22 − 16 = 6.
4. Find the missing number: 41 − ____ = 19
22Subtract 19 from 41: 41 − 19 = 22.
5. Find the missing number: 14 − ____ = 4
10Subtract 4 from 14: 14 − 4 = 10.
6. Find the missing number: 48 − ____ = 26
22Subtract 26 from 48: 48 − 26 = 22.
7. Find the missing number: 20 − ____ = 6
14Subtract 6 from 20: 20 − 6 = 14.
8. Find the missing number: 52 − ____ = 17
35Subtract 17 from 52: 52 − 17 = 35.
9. Find the missing number: 54 − ____ = 31
23Subtract 31 from 54: 54 − 31 = 23.
10. Find the missing number: 33 − ____ = 30
3Subtract 30 from 33: 33 − 30 = 3.
11. Find the missing number: 68 − ____ = 40
28Subtract 40 from 68: 68 − 40 = 28.
12. Find the missing number: 49 − ____ = 35
14Subtract 35 from 49: 49 − 35 = 14.
12 questions · Seed 104752 · 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: 51 − ____ = 18
2. Find the missing number: 69 − ____ = 34
3. Find the missing number: 22 − ____ = 16
4. Find the missing number: 41 − ____ = 19
5. Find the missing number: 14 − ____ = 4
6. Find the missing number: 48 − ____ = 26
7. Find the missing number: 20 − ____ = 6
8. Find the missing number: 52 − ____ = 17
9. Find the missing number: 54 − ____ = 31
10. Find the missing number: 33 − ____ = 30
11. Find the missing number: 68 − ____ = 40
12. Find the missing number: 49 − ____ = 35
12 questions · Seed 104752 · 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: 51 − ____ = 18
33Subtract 18 from 51: 51 − 18 = 33.
2. Find the missing number: 69 − ____ = 34
35Subtract 34 from 69: 69 − 34 = 35.
3. Find the missing number: 22 − ____ = 16
6Subtract 16 from 22: 22 − 16 = 6.
4. Find the missing number: 41 − ____ = 19
22Subtract 19 from 41: 41 − 19 = 22.
5. Find the missing number: 14 − ____ = 4
10Subtract 4 from 14: 14 − 4 = 10.
6. Find the missing number: 48 − ____ = 26
22Subtract 26 from 48: 48 − 26 = 22.
7. Find the missing number: 20 − ____ = 6
14Subtract 6 from 20: 20 − 6 = 14.
8. Find the missing number: 52 − ____ = 17
35Subtract 17 from 52: 52 − 17 = 35.
9. Find the missing number: 54 − ____ = 31
23Subtract 31 from 54: 54 − 31 = 23.
10. Find the missing number: 33 − ____ = 30
3Subtract 30 from 33: 33 − 30 = 3.
11. Find the missing number: 68 − ____ = 40
28Subtract 40 from 68: 68 − 40 = 28.
12. Find the missing number: 49 − ____ = 35
14Subtract 35 from 49: 49 − 35 = 14.
12 questions · Seed 104752 · Age guidance, not curriculum certification