To round 1.005 to two significant figures:

1. Identify the first two significant digits: 
   - In 1.005, the first two significant figures are **1** and **0**.

2. Round based on the third digit (5 in this case). Since the digit after the second significant figure is 5, we round up the second significant figure.

Thus, rounding 1.005 to two significant figures gives **1.0**.

Would you like more details or have any other questions?

Here are 5 related questions:
1. How do you round numbers to different significant figures?
2. What are the rules for rounding with significant digits?
3. Can you explain how significant figures are used in scientific calculations?
4. How does rounding differ from truncating a number?
5. What is the importance of significant figures in measurements?

**Tip:** When rounding to significant figures, always check the digits after the cutoff to decide whether to round up or down.

Learn how to round the number 1.005 to two significant figures. This problem covers key concepts of rounding and significant figures, explaining the rules of rounding when dealing with decimals. Suitable for students in Grades 6-8.

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