Math Workbook Grade 1: Addition and Subtraction - 6th Edition

The image shows the cover of a math workbook for Grade 1, focusing on addition and subtraction. The workbook is titled "Math Workbook Grade 1 Addition and Subtraction" and is the 6th Edition. Below the title, there are sample pages from the workbook, which include exercises related to subtraction, writing signs for number sentences, and addition.

Problem Description:

The problem involves completing the exercises shown in the sample pages. Specifically, we need to solve the problems related to subtraction, addition, and determining whether to use "+" or "-" in number sentences.

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Solution:

#### 1. Subtraction Worksheet (Left Page)
The left page shows subtraction problems. Here are the solutions:

- 5 - 4 = 1
- 9 - 3 = 6
- 1 - 8 = -7 (Note: This might be an error in the worksheet since it's for Grade 1, typically dealing with non-negative numbers.)
- 5 - 2 = 3
- 8 - 7 = 1

#### 2. Write Sign for Each Number Sentence (Middle Page)
The middle page asks to determine whether to use "+" or "-" for each number sentence. Here are the solutions:

- 6 ○ 3 = 3: \(6 - 3 = 3\) → Use "-"
- 5 ○ 1 = 4: \(5 - 1 = 4\) → Use "-"
- 0 ○ 4 = 4: \(0 + 4 = 4\) → Use "+"
- 3 ○ 2 = 1: \(3 - 2 = 1\) → Use "-"
- 7 ○ 5 = 12: \(7 + 5 = 12\) → Use "+"
- 2 ○ 1 = 3: \(2 + 1 = 3\) → Use "+"
- 9 ○ 8 = 1: \(9 - 8 = 1\) → Use "-"
- 10 ○ 10 = 0: \(10 - 10 = 0\) → Use "-"
- 8 ○ 3 = 11: \(8 + 3 = 11\) → Use "+"
- 9 ○ 5 = 14: \(9 + 5 = 14\) → Use "+"
- 1 ○ 1 = 2: \(1 + 1 = 2\) → Use "+"
- 8 ○ 7 = 1: \(8 - 7 = 1\) → Use "-"
- 9 ○ 1 = 10: \(9 + 1 = 10\) → Use "+"
- 9 ○ 0 = 9: \(9 + 0 = 9\) → Use "+"
- 3 ○ 2 = 1: \(3 - 2 = 1\) → Use "-"

#### 3. Addition Worksheet (Right Page)
The right page shows addition problems. Here are the solutions:

- 4 + 6 = 10
- 10 + 1 = 11
- 10 + 2 = 12
- 3 + 6 = 9
- 2 + 4 = 6
- 0 + 7 = 7
- 0 + 1 = 1
- 6 + 3 = 9
- 8 + 9 = 17
- 4 + 1 = 5
- 7 + 4 = 11
- 4 + 7 = 11
- 6 + 1 = 7
- 1 + 6 = 7
- 5 + 7 = 12

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Final Answer:

The solutions to the problems are as follows:

1. Subtraction Worksheet:
- \(5 - 4 = 1\)
- \(9 - 3 = 6\)
- \(1 - 8 = -7\)
- \(5 - 2 = 3\)
- \(8 - 7 = 1\)

2. Write Sign for Each Number Sentence:
- \(6 - 3 = 3\)
- \(5 - 1 = 4\)
- \(0 + 4 = 4\)
- \(3 - 2 = 1\)
- \(7 + 5 = 12\)
- \(2 + 1 = 3\)
- \(9 - 8 = 1\)
- \(10 - 10 = 0\)
- \(8 + 3 = 11\)
- \(9 + 5 = 14\)
- \(1 + 1 = 2\)
- \(8 - 7 = 1\)
- \(9 + 1 = 10\)
- \(9 + 0 = 9\)
- \(3 - 2 = 1\)

3. Addition Worksheet:
- \(4 + 6 = 10\)
- \(10 + 1 = 11\)
- \(10 + 2 = 12\)
- \(3 + 6 = 9\)
- \(2 + 4 = 6\)
- \(0 + 7 = 7\)
- \(0 + 1 = 1\)
- \(6 + 3 = 9\)
- \(8 + 9 = 17\)
- \(4 + 1 = 5\)
- \(7 + 4 = 11\)
- \(4 + 7 = 11\)
- \(6 + 1 = 7\)
- \(1 + 6 = 7\)
- \(5 + 7 = 12\)

\(\boxed{\text{Solutions provided above}}\)