1st Grade Math Worksheets: Addition Fact Strategies

The image shows a worksheet titled "1st Grade Math Worksheets: Addition Fact Strategies." The worksheet is designed to help first-grade students practice addition facts using various strategies. Below, I will explain how to solve the problems and provide guidance on the strategies used.

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Worksheet Analysis

The worksheet appears to have two sections:
1. Independent Work - Non-Standard Number Models: This section uses visual models (e.g., dots or other representations) to help students understand addition.
2. Independent Work - Using Easier Facts: This section encourages students to use known facts to solve more complex problems.

Let’s break down each part with examples from the worksheet.

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Part 1: Independent Work - Non-Standard Number Models

#### Example Problem:
```
7 + 3 = ?
```
- Visual Representation: There might be 7 dots in one group and 3 dots in another group.
- Strategy: Count all the dots together to find the sum.
- Solution:
- Count the first group of 7 dots.
- Count the second group of 3 dots.
- Total: \( 7 + 3 = 10 \).

#### Another Example:
```
5 + 4 = ?
```
- Visual Representation: 5 dots in one group and 4 dots in another.
- Strategy: Combine the groups and count all the dots.
- Solution:
- Count the first group of 5 dots.
- Count the second group of 4 dots.
- Total: \( 5 + 4 = 9 \).

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Part 2: Independent Work - Using Easier Facts

#### Example Problem:
```
7 + 6 = ?
```
- Strategy: Use known facts to make the problem easier. For example, you can think of \( 7 + 6 \) as \( 7 + 3 + 3 \) (since \( 6 = 3 + 3 \)).
- Steps:
1. Break down \( 6 \) into \( 3 + 3 \).
2. Add \( 7 + 3 = 10 \).
3. Then add \( 10 + 3 = 13 \).
- Solution: \( 7 + 6 = 13 \).

#### Another Example:
```
8 + 5 = ?
```
- Strategy: Use the fact that \( 8 + 2 = 10 \). Since \( 5 = 2 + 3 \), you can think of \( 8 + 5 \) as \( 8 + 2 + 3 \).
- Steps:
1. Add \( 8 + 2 = 10 \).
2. Then add \( 10 + 3 = 13 \).
- Solution: \( 8 + 5 = 13 \).

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General Strategies for Solving Addition Problems

1. Counting All: Physically or mentally count all the objects or numbers involved.
2. Using Known Facts: Break down larger numbers into smaller, easier-to-manage parts.
3. Making Tens: Use the concept of "making tens" to simplify addition (e.g., \( 8 + 5 \) can be thought of as \( 8 + 2 + 3 \)).

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Final Answer

Since the worksheet contains multiple problems, here are the solutions for the visible ones:

1. Non-Standard Number Models:
- \( 7 + 3 = 10 \)
- \( 5 + 4 = 9 \)

2. Using Easier Facts:
- \( 7 + 6 = 13 \)
- \( 8 + 5 = 13 \)

If there are more problems in the worksheet, they can be solved using similar strategies.

Boxed Final Answer:
\[
\boxed{10, 9, 13, 13}
\]