Math worksheet for practicing addition and subtraction with numbers 1-9.

Problem Description:

The image shows a worksheet titled "ADD or SUBTRACT," which contains a grid of numbers. The task is to perform addition or subtraction operations based on the given numbers and their arrangement.

Solution Approach:

1. Identify the Structure:
- The grid consists of rows and columns.
- Each row appears to involve either addition or subtraction, but the specific operation (addition or subtraction) is not explicitly stated for each row. We need to infer the operation based on the structure and typical patterns in such worksheets.

2. Analyze Each Row:
- For each row, we will determine whether addition or subtraction is being performed by examining the pattern of numbers and the result column.

3. Perform Calculations:
- For each row, calculate the result based on the inferred operation.

4. Verify Consistency:
- Ensure that the results align with the expected format and logic of the worksheet.

Step-by-Step Solution:

#### Row 1:
Numbers: `8, -1, +4, +6, +7, +8`
- Operation: Addition
- Calculation:
\[
8 + (-1) + 4 + 6 + 7 + 8 = 8 - 1 + 4 + 6 + 7 + 8 = 32
\]

#### Row 2:
Numbers: `2, +7, 5, -3, -4, +5, +4`
- Operation: Addition
- Calculation:
\[
2 + 7 + 5 + (-3) + (-4) + 5 + 4 = 2 + 7 + 5 - 3 - 4 + 5 + 4 = 16
\]

#### Row 3:
Numbers: `3, -1, 7, +9, +7, +9, +1, +4`
- Operation: Addition
- Calculation:
\[
3 + (-1) + 7 + 9 + 7 + 9 + 1 + 4 = 3 - 1 + 7 + 9 + 7 + 9 + 1 + 4 = 39
\]

#### Row 4:
Numbers: `4, +5, 2, -3, +9, +7, +9, -4`
- Operation: Addition
- Calculation:
\[
4 + 5 + 2 + (-3) + 9 + 7 + 9 + (-4) = 4 + 5 + 2 - 3 + 9 + 7 + 9 - 4 = 39
\]

#### Row 5:
Numbers: `8, +9, 6, -1, +9, -5, +5, -4`
- Operation: Addition
- Calculation:
\[
8 + 9 + 6 + (-1) + 9 + (-5) + 5 + (-4) = 8 + 9 + 6 - 1 + 9 - 5 + 5 - 4 = 27
\]

Final Results:

- Row 1: \( 32 \)
- Row 2: \( 16 \)
- Row 3: \( 39 \)
- Row 4: \( 39 \)
- Row 5: \( 27 \)

Final Answer:

\[
\boxed{32, 16, 39, 39, 27}
\]