Express the number 0.0006584 in scientific
notation to 3 significant figures.
1. 6.58 × 10−4
2. 6.59 × 10−4
3. 6.580 × 10−4
4. 6.58 × 10−3

The number \( 0.0006584 \) in scientific notation is \( 6.584 \times 10^{-4} \). 

To round it to 3 significant figures, it becomes:

\[
6.58 \times 10^{-4}
\]

Therefore, the correct option is:

**1. \( 6.58 \times 10^{-4} \)**

Would you like more details on rounding or scientific notation? Here are 5 questions that can expand on this topic:

1. How do you determine the number of significant figures in a number?
2. What is the general rule for rounding numbers in scientific notation?
3. How would you express 0.00004732 in scientific notation to 3 significant figures?
4. Why do we use scientific notation for very small or very large numbers?
5. What is the difference between significant figures and decimal places?

**Tip:** When rounding, look at the digit immediately after your last significant figure—if it's 5 or more, round up!

Express the number 0.0006584 in scientific notation to 3 significant figures.
1. 6.58 × 10−4
2. 6.59 × 10−4
3. 6.580 × 10−4
4. 6.58 × 10−3

Learn how to express the number 0.0006584 in scientific notation rounded to 3 significant figures. This math problem involves key concepts like significant figures, scientific notation, and rounding. Suitable for students in Grades 6-8.

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