Let's solve each addition problem step by step using the number line provided at the top (0 to 20). The number line can help visualize how numbers increase when we add.
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1. 3 + 5 = ?
- Start at 3 on the number line.
- Count forward 5 steps: 4, 5, 6, 7, 8.
- Answer:
8
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2. 2 + 7 = ?
- Start at 2.
- Count forward 7 steps: 3, 4, 5, 6, 7, 8, 9.
- Answer:
9
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3. 6 + 5 = ?
- Start at 6.
- Count forward 5 steps: 7, 8, 9, 10, 11.
- Answer:
11
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4. 9 + 6 = ?
- Start at 9.
- Count forward 6 steps: 10, 11, 12, 13, 14, 15.
- Answer:
15
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5. 12 + 4 = ?
- Start at 12.
- Count forward 4 steps: 13, 14, 15, 16.
- Answer:
16
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6. 10 + 9 = ?
- Start at 10.
- Count forward 9 steps: 11, 12, 13, 14, 15, 16, 17, 18, 19.
- Answer:
19
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7. 11 + 3 = ?
- Start at 11.
- Count forward 3 steps: 12, 13, 14.
- Answer:
14
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8. 1 + 17 = ?
- Start at 1.
- Count forward 17 steps: 2, 3, ..., up to 18.
- Alternatively: 1 + 17 = 18.
- Answer:
18
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9. 13 + 7 = ?
- Start at 13.
- Count forward 7 steps: 14, 15, 16, 17, 18, 19, 20.
- Answer:
20
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10. 8 + 4 = ?
- Start at 8.
- Count forward 4 steps: 9, 10, 11, 12.
- Answer:
12
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✔ Final Answers:
1. 3 + 5 =
8
2. 2 + 7 =
9
3. 6 + 5 =
11
4. 9 + 6 =
15
5. 12 + 4 =
16
6. 10 + 9 =
19
7. 11 + 3 =
14
8. 1 + 17 =
18
9. 13 + 7 =
20
10. 8 + 4 =
12
You can now fill in the stars with these answers! 🌟
Let me know if you'd like a printable version or a visual explanation!
Parent Tip: Review the logic above to help your child master the concept of addition to 20 worksheet.
