https://file.aiquickdraw.com/mathbot/file/1726182357969ro8x8auz.jpg

Let's break down each expression and solve them one by one.

### Expression D:
\[
9 + 3 - 5
\]
First, calculate:
\[
9 + 3 = 12
\]
Then:
\[
12 - 5 = 7
\]
The value of Expression D is **7**.

### Expression E:
\[
55 \div 11 + 3
\]
First, divide:
\[
55 \div 11 = 5
\]
Then:
\[
5 + 3 = 8
\]
The value of Expression E is **8**.

### Expression F:
\[
2 + 9 - 3
\]
First, calculate:
\[
2 + 9 = 11
\]
Then:
\[
11 - 3 = 8
\]
The value of Expression F is **8**.

### Expression G:
\[
5 \times 3 - 12 = 3
\]
First, calculate:
\[
5 \times 3 = 15
\]
Then:
\[
15 - 12 = 3
\]
The value of Expression G is **3**.

### Mapping Numbers to Letters:
Based on the code key provided:
- G = 7
- L = 8
- O = 8

Now, we unscramble the letters **G**, **L**, and **O**.

The correct word is **LOG**.

This is the code to unlock the lock.

Would you like a deeper explanation, or do you have any questions?

Here are 5 related questions for further practice:
1. What is the value of \( 7 \times 6 - 4 + 3 \)?
2. Solve \( 30 \div 5 + 7 - 2 \).
3. If you had to solve \( 10 + 8 - 6 \), what is the answer?
4. Calculate \( 12 \div 4 + 3 \times 2 \).
5. How do parentheses affect the order of operations in expressions?

**Tip**: Always follow the order of operations (PEMDAS) to avoid mistakes when solving expressions.

Learn how to solve basic arithmetic expressions with addition, subtraction, multiplication, and division to unlock a code. The expressions cover essential mathematical concepts and follow the order of operations. Suitable for students in Grades 4-6.

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