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First Grade Math Unit 12 Adding 3 Numbers First Grade Math ... - Free Printable

First Grade Math Unit 12 Adding 3 Numbers First Grade Math ...

Educational worksheet: First Grade Math Unit 12 Adding 3 Numbers First Grade Math .... Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: First Grade Math Unit 12 Adding 3 Numbers First Grade Math ...
It looks like you've uploaded a math worksheet titled "Make a 10", which is designed to help students practice addition by using the strategy of making a group of 10. The goal is to add two numbers and see if they make 10, or to use "making ten" as a mental math strategy.

Let’s go through each problem step by step and solve them.

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🔢 First Row:


These are all addition problems:

1. 3 + 5 = ?
→ 3 + 5 = 8

2. 4 + 2 = ?
→ 4 + 2 = 6

3. 2 + 5 = ?
→ 2 + 5 = 7

4. 8 + 3 = ?
→ 8 + 3 = 11

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🔢 Second Row:



5. 6 + 5 = ?
→ 6 + 5 = 11

6. 3 + 8 = ?
→ 3 + 8 = 11

7. 9 + 7 = ?
→ 9 + 7 = 16

8. 7 + 6 = ?
→ 7 + 6 = 13

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🔢 Third Row:



9. 5 + 5 = ?
→ 5 + 5 = 10 (This makes 10!)

10. 2 + 9 = ?
→ 2 + 9 = 11

11. 4 + 3 = ?
→ 4 + 3 = 7

12. 4 + 1 = ?
→ 4 + 1 = 5

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🎯 What is “Make a 10”?



The "Make a 10" strategy is a foundational math skill where students learn to break apart numbers to make a sum of 10, which makes addition easier.

For example:
- To solve 8 + 5, think: 8 needs 2 to make 10.
- Break 5 into 2 and 3.
- So: 8 + 2 = 10, then 10 + 3 = 13.

But in this worksheet, it seems the focus is on practicing simple addition and identifying when sums equal 10.

Only one problem results in exactly 10:
5 + 5 = 10

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Final Answers:



| Problem | Answer |
|--------|--------|
| 3 + 5 | 8 |
| 4 + 2 | 6 |
| 2 + 5 | 7 |
| 8 + 3 | 11 |
| 6 + 5 | 11 |
| 3 + 8 | 11 |
| 9 + 7 | 16 |
| 7 + 6 | 13 |
| 5 + 5 | 10 |
| 2 + 9 | 11 |
| 4 + 3 | 7 |
| 4 + 1 | 5 |

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🧠 Key Takeaway:


The only sum that equals 10 is 5 + 5. This may be the main point of the exercise — to identify which pair adds up to 10.

If this is part of a larger lesson, students might be encouraged to circle or highlight the "make a 10" problem (i.e., 5 + 5).

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📝 At the Bottom:


There's a section:
> "This was: Easy Just Right Hard"

Students can check which box applies to how they felt about the task.

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Summary:


- Solve each addition problem.
- Identify which ones make 10.
- Only 5 + 5 = 10.
- The rest are just practice for basic addition.

Let me know if you'd like a printable version or visual explanation!
Parent Tip: Review the logic above to help your child master the concept of three number addition worksheet first.
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(view all three number addition worksheet first)

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