Solve multiplication problems to reveal the secret message on this fun math worksheet.

Problem Description:

The task involves solving a series of multiplication problems and then using the results to decode a secret message. Each product corresponds to a letter based on a provided key at the bottom of the worksheet.

Step-by-Step Solution:

#### 1. Solve the Multiplication Problems:
We will calculate each product step by step.

##### First Row:
- \( 8 \times 7 = 56 \)
- \( 3 \times 6 = 18 \)
- \( 4 \times 7 = 28 \)
- \( 3 \times 3 = 9 \)
- \( 8 \times 2 = 16 \)
- \( 7 \times 2 = 14 \)
- \( q \times 5 = ? \) (Note: \( q \) is not a number, so we'll address this later.)
- \( 6 \times 4 = 24 \)

##### Second Row:
- \( 5 \times 6 = 30 \)
- \( 3 \times 2 = 6 \)
- \( 7 \times 2 = 14 \)
- \( 6 \times 6 = 36 \)
- \( 4 \times 8 = 32 \)
- \( 9 \times 4 = 36 \)
- \( 4 \times 5 = 20 \)
- \( 4 \times 6 = 24 \)
- \( 6 \times 3 = 18 \)

##### Third Row:
- \( 7 \times 2 = 14 \)
- \( 5 \times 4 = 20 \)
- \( 7 \times 7 = 49 \)
- \( 8 \times 4 = 32 \)
- \( 7 \times 5 = 35 \)
- \( 4 \times 6 = 24 \)
- \( 4 \times 6 = 24 \)

##### Fourth Row:
- \( 5 \times 3 = 15 \)
- \( 4 \times 4 = 16 \)
- \( q \times 5 = ? \) (Again, \( q \) is not a number.)
- \( 5 \times 4 = 20 \)
- \( 6 \times 6 = 36 \)
- \( 2 \times 9 = 18 \)
- \( 6 \times 2 = 12 \)
- \( 3 \times 6 = 18 \)
- \( 3 \times 6 = 18 \)

#### 2. Decode the Secret Message:
Using the key at the bottom of the worksheet, match each product to its corresponding letter. The key is as follows:
```
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
20 72 9 24 18 54 32 6 14 42 81 28 49 63 16 12 25 36 8 30 45 21 56 40 15 4
```

##### First Row:
- \( 56 \rightarrow \text{No match} \)
- \( 18 \rightarrow D \)
- \( 28 \rightarrow K \)
- \( 9 \rightarrow C \)
- \( 16 \rightarrow P \)
- \( 14 \rightarrow J \)
- \( q \times 5 \rightarrow \text{No match} \)
- \( 24 \rightarrow E \)

##### Second Row:
- \( 30 \rightarrow T \)
- \( 6 \rightarrow H \)
- \( 14 \rightarrow J \)
- \( 36 \rightarrow R \)
- \( 32 \rightarrow L \)
- \( 36 \rightarrow R \)
- \( 20 \rightarrow A \)
- \( 24 \rightarrow E \)
- \( 18 \rightarrow D \)

##### Third Row:
- \( 14 \rightarrow J \)
- \( 20 \rightarrow A \)
- \( 49 \rightarrow M \)
- \( 32 \rightarrow L \)
- \( 35 \rightarrow \text{No match} \)
- \( 24 \rightarrow E \)
- \( 24 \rightarrow E \)

##### Fourth Row:
- \( 15 \rightarrow Y \)
- \( 16 \rightarrow P \)
- \( q \times 5 \rightarrow \text{No match} \)
- \( 20 \rightarrow A \)
- \( 36 \rightarrow R \)
- \( 18 \rightarrow D \)
- \( 12 \rightarrow S \)
- \( 18 \rightarrow D \)
- \( 18 \rightarrow D \)

#### 3. Interpret the Results:
From the decoded letters, we can form words. However, there are some products that do not match any letters in the key (e.g., \( 56 \), \( 35 \), etc.). Additionally, the presence of \( q \) indicates that there might be a placeholder or an error in the problem setup.

#### 4. Final Answer:
Based on the matching letters, the decoded message appears to be:
```
DEKCPJETHRRLAJMLLEPEARDSD
```
However, due to unmatched products and the presence of \( q \), the message may not be fully coherent. If \( q \) were a number, it would help complete the decoding.

Final Answer:

\[
\boxed{DEKCPJETHRRLAJMLLEPEARDSD}
\]

If additional context or clarification is needed (e.g., the value of \( q \)), please provide it!