Let’s go through each problem one by one and find the missing number.
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Problem 1:
5 + ___ = 9
→ What do we add to 5 to get 9?
9 - 5 = 4 → Answer:
4
Problem 2:
___ - 4 = 0
→ What number minus 4 equals 0?
0 + 4 = 4 → Answer:
4
Problem 3:
9 - ___ = 7
→ What do we subtract from 9 to get 7?
9 - 7 = 2 → Answer:
2
Problem 4:
6 - ___ = 4
→ 6 minus what is 4?
6 - 4 = 2 → Answer:
2
Problem 5:
5 - ___ = 5
→ 5 minus what is still 5?
Only 0 works → Answer:
0
Problem 6:
___ - 3 = 0
→ What minus 3 is 0?
0 + 3 = 3 → Answer:
3
Problem 7:
8 - ___ = 1
→ 8 minus what is 1?
8 - 1 = 7 → Answer:
7
Problem 8:
6 - ___ = 5
→ 6 minus what is 5?
6 - 5 = 1 → Answer:
1
Problem 9:
7 + ___ = 8
→ 7 plus what is 8?
8 - 7 = 1 → Answer:
1
Problem 10:
___ - 2 = 5
→ What minus 2 is 5?
5 + 2 = 7 → Answer:
7
Problem 11:
3 - ___ = 2
→ 3 minus what is 2?
3 - 2 = 1 → Answer:
1
Problem 12:
8 - ___ = 4
→ 8 minus what is 4?
8 - 4 = 4 → Answer:
4
Problem 13:
9 - ___ = 6
→ 9 minus what is 6?
9 - 6 = 3 → Answer:
3
Problem 14:
___ + 4 = 9
→ What plus 4 is 9?
9 - 4 = 5 → Answer:
5
Problem 15:
4 - ___ = 1
→ 4 minus what is 1?
4 - 1 = 3 → Answer:
3
Problem 16:
7 + ___ = 8
→ 7 plus what is 8?
8 - 7 = 1 → Answer:
1
Problem 17:
2 + ___ = 9
→ 2 plus what is 9?
9 - 2 = 7 → Answer:
7
Problem 18:
4 + ___ = 7
→ 4 plus what is 7?
7 - 4 = 3 → Answer:
3
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Final Answer:
4, 4, 2, 2, 0, 3, 7, 1, 1, 7, 1, 4, 3, 5, 3, 1, 7, 3
Parent Tip: Review the logic above to help your child master the concept of grade 1 math worksheets pdf free download.
