Let's solve this math worksheet step by step using the
"Make a 10" strategy. This method helps simplify addition by grouping numbers to make
10, which is easier to work with.
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🔹 Strategy: "Make a 10"
We look for two numbers that add up to
10, then add the remaining number.
Let’s go through each problem:
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1. 6 + 4 + 8 = ?
- First,
6 + 4 = 10 → we’ve made a 10!
- Then,
10 + 8 = 18
✔ Answer: 18
> Circle:
10 (already shown)
---
2. 5 + 8 + 2 = ?
- Look at
8 + 2 = 10
- Then
5 + 10 = 15
✔ Answer: 15
> Circle:
10 (from 8+2)
---
3. 4 + 5 + 5 = ?
-
5 + 5 = 10
- Then
4 + 10 = 14
✔ Answer: 14
> Circle:
10 (from 5+5)
---
4. 3 + 7 + 9 = ?
-
3 + 7 = 10
- Then
10 + 9 = 19
✔ Answer: 19
> Circle:
10 (from 3+7)
---
5. 2 + 8 + 3 = ?
-
2 + 8 = 10
- Then
10 + 3 = 13
✔ Answer: 13
> Circle:
10 (from 2+8)
---
6. 7 + 9 + 1 = ?
-
9 + 1 = 10
- Then
7 + 10 = 17
✔ Answer: 17
> Circle:
10 (from 9+1)
---
7. 4 + 7 + 3 = ?
-
7 + 3 = 10
- Then
4 + 10 = 14
✔ Answer: 14
> Circle:
10 (from 7+3)
---
8. 5 + 5 + 8 = ?
-
5 + 5 = 10
- Then
10 + 8 = 18
✔ Answer: 18
> Circle:
10 (from 5+5)
---
9. 7 + 3 + 2 = ?
-
7 + 3 = 10
- Then
10 + 2 = 12
✔ Answer: 12
> Circle:
10 (from 7+3)
---
10. 6 + 1 + 9 = ?
-
6 + 1 = 7, but better:
1 + 9 = 10
- Then
6 + 10 = 16
✔ Answer: 16
> Circle:
10 (from 1+9)
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✔ Final Answers:
| Problem | Answer |
|--------|--------|
| 6+4+8 | 18 |
| 5+8+2 | 15 |
| 4+5+5 | 14 |
| 3+7+9 | 19 |
| 2+8+3 | 13 |
| 7+9+1 | 17 |
| 4+7+3 | 14 |
| 5+5+8 | 18 |
| 7+3+2 | 12 |
| 6+1+9 | 16 |
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📝 Instructions:
- Fill in the
boxes with the final sum.
- In the
circles, write
10 (since we're making a 10).
- At the bottom, circle
"Just Right" or your choice based on difficulty.
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✔ Summary of How to Use "Make a 10":
1. Look for two numbers that add to 10.
2. Add them first.
3. Add the third number to 10.
4. This makes mental math faster and easier!
Let me know if you'd like this printed version filled out!
Parent Tip: Review the logic above to help your child master the concept of adding 3 numbers.
