How many significant figures are in the following numbers? 

2020.00
43.0
0.032  
4.67 x 105     

Let's determine the number of significant figures in each number:

1. **2020.00**  
   - This number includes trailing zeros after a decimal point, which are significant.  
   - **Number of significant figures: 6**

2. **43.0**  
   - The zero after the decimal is significant because it indicates precision.  
   - **Number of significant figures: 3**

3. **0.032**  
   - Leading zeros are not significant; only the digits after the zeros count.  
   - **Number of significant figures: 2**

4. **4.67 × 10⁵**  
   - In scientific notation, only the digits in the coefficient (4.67) are significant.  
   - **Number of significant figures: 3**

So, the number of significant figures for each number is as follows:
- 2020.00: **6 significant figures**
- 43.0: **3 significant figures**
- 0.032: **2 significant figures**
- 4.67 × 10⁵: **3 significant figures**

Would you like further details or clarifications?

Here are 5 related questions to expand on this concept:
1. How do you determine significant figures in scientific notation?
2. Why are trailing zeros after a decimal point considered significant?
3. How does rounding affect the number of significant figures in a calculation?
4. What are the rules for significant figures in multiplication and division?
5. How do significant figures impact measurement accuracy?

**Tip:** When performing calculations, always apply significant figure rules to maintain precision throughout.

How many significant figures are in the following numbers? 2020.00, 43.0, 0.032, 4.67 x 10^5

Explore how to determine the number of significant figures in different numbers, including 2020.00, 43.0, 0.032, and 4.67 x 10^5. This explanation covers key concepts such as significant figures and scientific notation, ideal for students in Grades 9-12.

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