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The problem asks to estimate the value of \(\frac{8.4 + 5.5}{1.8}\) by rounding each number to **1 significant figure**. Let's go step by step:

### Step 1: Round each number to 1 significant figure.
- \(8.4\) rounds to **8**.
- \(5.5\) rounds to **6**.
- \(1.8\) rounds to **2**.

### Step 2: Perform the calculation using the rounded values.
\[
\frac{8 + 6}{2} = \frac{14}{2} = 7
\]

### Final Answer:
The estimated value is **7**.

Would you like more details on rounding numbers or any other clarification?

Here are 5 related questions to practice:
1. Estimate \(\frac{12.6 + 4.9}{2.3}\) by rounding to 1 significant figure.
2. What is the result of \(\frac{7.4 + 6.2}{1.5}\) rounded to 1 significant figure?
3. If you round 9.8 to 1 significant figure, what do you get?
4. Estimate the value of \(\frac{15.8 + 4.1}{3.2}\) using 1 significant figure rounding.
5. How would you round 2.67 to 1 significant figure?

**Tip**: When rounding, focus on the first digit that is not zero, and adjust based on the next digit.

By rounding each number below to 1 significant figure, estimate the value of (8.4 + 5.5) / 1.8

Learn how to estimate the value of (8.4 + 5.5) / 1.8 by rounding each number to 1 significant figure. This problem covers key mathematical concepts such as rounding and basic arithmetic operations, suitable for students in Grades 5-7.

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