Here is the solution to all the addition problems on the worksheet, along with a clear explanation for each.
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✔ Row 1:
1.
6 + 3 = 9
→ Start at 6, count up 3: 7, 8, 9.
2.
2 + 3 = 5
→ Start at 2, count up 3: 3, 4, 5.
3.
5 + 1 = 6
→ Adding 1 means the next number after 5.
4.
1 + 8 = 9
→ Start at 1, count up 8: 2, 3, 4, 5, 6, 7, 8, 9.
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✔ Row 2:
5.
2 + 8 = 10
→ 2 and 8 make a pair that adds to 10 (a friendly number).
6.
4 + 6 = 10
→ Another pair that makes 10.
7.
8 + 8 = 16
→ Double 8: 8 + 8 = 16.
8.
2 + 7 = 9
→ Start at 2, count up 7: 3, 4, 5, 6, 7, 8, 9.
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✔ Row 3:
9.
3 + 4 = 7
→ Count up 4 from 3: 4, 5, 6, 7.
10.
9 + 2 = 11
→ Start at 9, count up 2: 10, 11.
11.
2 + 9 = 11
→ Same as above — addition is commutative (order doesn’t matter).
12.
7 + 4 = 11
→ Start at 7, count up 4: 8, 9, 10, 11.
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✔ Row 4:
13.
7 + 9 = 16
→ You can think: 7 + 10 = 17, minus 1 = 16. Or count up 9 from 7.
14.
9 + 6 = 15
→ 9 + 1 = 10, then +5 more = 15.
15.
7 + 5 = 12
→ 7 + 3 = 10, then +2 more = 12.
16.
3 + 9 = 12
→ Same as 9 + 3 = 12 (commutative property).
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## 📝 Final Answers (in order):
Row 1:
9, 5, 6, 9
Row 2:
10, 10, 16, 9
Row 3:
7, 11, 11, 11
Row 4:
16, 15, 12, 12
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✔ Tip for Students:
Use your fingers, draw dots, or use mental math strategies like “making ten” (e.g., 9 + 6 = 9 + 1 + 5 = 10 + 5 = 15) to solve these quickly!
Let me know if you’d like a printable answer sheet or flashcards for practice!
Parent Tip: Review the logic above to help your child master the concept of first grade addition worksheets.
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