"Crack the Code" math worksheets for addition and subtraction practice, featuring fun puzzles and a yellow pencil on a wooden table.

Problem Description:

The image shows two worksheets titled "Crack the Code." Each worksheet involves solving math problems (subtraction and addition) and using the answers to decode a message. The goal is to solve the math problems, match the answers to corresponding letters, and reveal the hidden message.

#### Worksheet 1: Subtraction
- Solve the subtraction problems.
- Use the answers to fill in the blanks at the bottom of the sheet.
- The question at the bottom asks: "What do Mars and Venus have in common?"

#### Worksheet 2: Addition
- Solve the addition problems.
- Use the answers to fill in the blanks at the bottom of the sheet.
- The question at the bottom asks: "How did the alien pay for his coffee?"

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Solution:

#### Step 1: Solve the Subtraction Problems (Worksheet 1)

1. \( 9 - 1 = 8 \)
2. \( 6 - 4 = 2 \)
3. \( 7 - 0 = 7 \)
4. \( 8 - 6 = 2 \)
5. \( 5 - 1 = 4 \)
6. \( 10 - 4 = 6 \)
7. \( 10 - 7 = 3 \)

Answers: \( 8, 2, 7, 2, 4, 6, 3 \)

#### Step 2: Decode the Message (Worksheet 1)

The worksheet provides a key where each number corresponds to a letter. Using the answers from the subtraction problems, we can decode the message:

- \( 8 \rightarrow q \)
- \( 2 \rightarrow u \)
- \( 7 \rightarrow a \)
- \( 2 \rightarrow u \)
- \( 4 \rightarrow r \)
- \( 6 \rightarrow s \)
- \( 3 \rightarrow e \)

Decoded message: "quaures"

However, this seems incomplete or incorrect. Let's assume there might be a typo or missing information. For now, we'll move on to the next worksheet.

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#### Step 3: Solve the Addition Problems (Worksheet 2)

1. \( 9 + 2 = 11 \)
2. \( 8 + 5 = 13 \)
3. \( 4 + 3 = 7 \)
4. \( 5 + 0 = 5 \)
5. \( 3 + 3 = 6 \)
6. \( 7 + 2 = 9 \)
7. \( 6 + 6 = 12 \)
8. \( 8 + 2 = 10 \)
9. \( 7 + 7 = 14 \)
10. \( 5 + 3 = 8 \)
11. \( 3 + 0 = 3 \)
12. \( 4 + 6 = 10 \)
13. \( 8 + 8 = 16 \)
14. \( 2 + 2 = 4 \)

Answers: \( 11, 13, 7, 5, 6, 9, 12, 10, 14, 8, 3, 10, 16, 4 \)

#### Step 4: Decode the Message (Worksheet 2)

The worksheet provides a key where each number corresponds to a letter. Using the answers from the addition problems, we can decode the message:

- \( 11 \rightarrow l \)
- \( 13 \rightarrow m \)
- \( 7 \rightarrow b \)
- \( 5 \rightarrow r \)
- \( 6 \rightarrow w \)
- \( 9 \rightarrow i \)
- \( 12 \rightarrow d \)
- \( 10 \rightarrow c \)
- \( 14 \rightarrow o \)
- \( 8 \rightarrow n \)
- \( 3 \rightarrow e \)
- \( 10 \rightarrow c \)
- \( 16 \rightarrow a \)
- \( 4 \rightarrow r \)

Decoded message: "lmbrcwindecoca"

This also seems incomplete or jumbled. Let's recheck the keys and assumptions.

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Final Answer:

Given the provided information and assuming no errors in the keys or problems, the decoded messages are:

- Worksheet 1 (Subtraction): "quaures" (likely incomplete or incorrect)
- Worksheet 2 (Addition): "lmbrcwindecoca" (likely incomplete or incorrect)

If there are additional clues or corrections needed, please provide them for further clarification.

\[
\boxed{\text{quaures, lmbrcwindecoca}}
\]