round off each number to 3 significant figures: 0.0011672

To round off the number 0.0011672 to 3 significant figures:

1. Identify the first three significant digits in the number. The first significant digit is the first non-zero digit, which in this case is `1`.
2. The first three significant digits are 1, 1, and 7.
3. To round to three significant figures, look at the digit after the third significant figure. In this case, the fourth digit is `2`, which is less than 5. Therefore, we don't round up.

So, the number 0.0011672 rounded to 3 significant figures is **0.00117**.

Would you like any further details or have any questions?

Here are 5 related questions:
1. How do you round a number to a specific number of decimal places?
2. What are significant figures and why are they important in calculations?
3. How do you round off a number when the digit to the right of the significant figures is exactly 5?
4. What are the rules for determining the number of significant figures in a measurement?
5. How would you round the number 0.000456789 to 3 significant figures?

**Tip:** When rounding numbers, always pay attention to the digit immediately following the last significant figure to determine if rounding up is necessary.

Learn how to round off the number 0.0011672 to 3 significant figures with a step-by-step explanation. This problem covers significant figures and rounding rules, crucial in scientific calculations. Suitable for students in Grades 7-9.

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