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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: 40 − ____ = 27
2. Find the missing number: 51 − ____ = 35
3. Find the missing number: 41 − ____ = 8
4. Find the missing number: 47 − ____ = 23
5. Find the missing number: 47 − ____ = 35
6. Find the missing number: 35 − ____ = 20
7. Find the missing number: 55 − ____ = 21
8. Find the missing number: 46 − ____ = 38
9. Find the missing number: 59 − ____ = 34
10. Find the missing number: 37 − ____ = 29
11. Find the missing number: 36 − ____ = 7
12. Find the missing number: 30 − ____ = 7
12 questions · Seed 124 · 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: 40 − ____ = 27
13Subtract 27 from 40: 40 − 27 = 13.
2. Find the missing number: 51 − ____ = 35
16Subtract 35 from 51: 51 − 35 = 16.
3. Find the missing number: 41 − ____ = 8
33Subtract 8 from 41: 41 − 8 = 33.
4. Find the missing number: 47 − ____ = 23
24Subtract 23 from 47: 47 − 23 = 24.
5. Find the missing number: 47 − ____ = 35
12Subtract 35 from 47: 47 − 35 = 12.
6. Find the missing number: 35 − ____ = 20
15Subtract 20 from 35: 35 − 20 = 15.
7. Find the missing number: 55 − ____ = 21
34Subtract 21 from 55: 55 − 21 = 34.
8. Find the missing number: 46 − ____ = 38
8Subtract 38 from 46: 46 − 38 = 8.
9. Find the missing number: 59 − ____ = 34
25Subtract 34 from 59: 59 − 34 = 25.
10. Find the missing number: 37 − ____ = 29
8Subtract 29 from 37: 37 − 29 = 8.
11. Find the missing number: 36 − ____ = 7
29Subtract 7 from 36: 36 − 7 = 29.
12. Find the missing number: 30 − ____ = 7
23Subtract 7 from 30: 30 − 7 = 23.
12 questions · Seed 124 · 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: 40 − ____ = 27
2. Find the missing number: 51 − ____ = 35
3. Find the missing number: 41 − ____ = 8
4. Find the missing number: 47 − ____ = 23
5. Find the missing number: 47 − ____ = 35
6. Find the missing number: 35 − ____ = 20
7. Find the missing number: 55 − ____ = 21
8. Find the missing number: 46 − ____ = 38
9. Find the missing number: 59 − ____ = 34
10. Find the missing number: 37 − ____ = 29
11. Find the missing number: 36 − ____ = 7
12. Find the missing number: 30 − ____ = 7
12 questions · Seed 124 · 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: 40 − ____ = 27
13Subtract 27 from 40: 40 − 27 = 13.
2. Find the missing number: 51 − ____ = 35
16Subtract 35 from 51: 51 − 35 = 16.
3. Find the missing number: 41 − ____ = 8
33Subtract 8 from 41: 41 − 8 = 33.
4. Find the missing number: 47 − ____ = 23
24Subtract 23 from 47: 47 − 23 = 24.
5. Find the missing number: 47 − ____ = 35
12Subtract 35 from 47: 47 − 35 = 12.
6. Find the missing number: 35 − ____ = 20
15Subtract 20 from 35: 35 − 20 = 15.
7. Find the missing number: 55 − ____ = 21
34Subtract 21 from 55: 55 − 21 = 34.
8. Find the missing number: 46 − ____ = 38
8Subtract 38 from 46: 46 − 38 = 8.
9. Find the missing number: 59 − ____ = 34
25Subtract 34 from 59: 59 − 34 = 25.
10. Find the missing number: 37 − ____ = 29
8Subtract 29 from 37: 37 − 29 = 8.
11. Find the missing number: 36 − ____ = 7
29Subtract 7 from 36: 36 − 7 = 29.
12. Find the missing number: 30 − ____ = 7
23Subtract 7 from 30: 30 − 7 = 23.
12 questions · Seed 124 · Age guidance, not curriculum certification