Let’s solve each addition sentence one by one. We need to find the missing number that makes the equation true.
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1 + ___ = 4
We start with 1 and want to get to 4.
How many more do we add?
1 → 2 (add 1)
2 → 3 (add 1 more)
3 → 4 (add 1 more)
That’s 3 total added.
✔ So,
1 + 3 = 4
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2 + ___ = 5
Start at 2, go to 5.
2 → 3 (1)
3 → 4 (2)
4 → 5 (3)
Added 3.
✔ So,
2 + 3 = 5
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6 + ___ = 9
Start at 6, go to 9.
6 → 7 (1)
7 → 8 (2)
8 → 9 (3)
Added 3.
✔ So,
6 + 3 = 9
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4 + ___ = 6
Start at 4, go to 6.
4 → 5 (1)
5 → 6 (2)
Added 2.
✔ So,
4 + 2 = 6
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1 + ___ = 5
Start at 1, go to 5.
1 → 2 (1)
2 → 3 (2)
3 → 4 (3)
4 → 5 (4)
Added 4.
✔ So,
1 + 4 = 5
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3 + ___ = 7
Start at 3, go to 7.
3 → 4 (1)
4 → 5 (2)
5 → 6 (3)
6 → 7 (4)
Added 4.
✔ So,
3 + 4 = 7
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5 + ___ = 8
Start at 5, go to 8.
5 → 6 (1)
6 → 7 (2)
7 → 8 (3)
Added 3.
✔ So,
5 + 3 = 8
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2 + ___ = 6
Start at 2, go to 6.
2 → 3 (1)
3 → 4 (2)
4 → 5 (3)
5 → 6 (4)
Added 4.
✔ So,
2 + 4 = 6
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Final Answer:
The missing numbers are:
3, 3, 3, 2, 4, 4, 3, 4
Parent Tip: Review the logic above to help your child master the concept of addition sentence worksheet for.
