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To determine the number of significant digits in the numbers 9.05 and 9.50:

1. **9.05**:
   - All non-zero digits are significant.
   - Any zeroes between non-zero digits are also significant.
   - Therefore, **9.05** has **three significant digits**.

2. **9.50**:
   - All non-zero digits are significant.
   - Trailing zeroes to the right of the decimal point are also significant.
   - Therefore, **9.50** has **three significant digits**.

Thus, both 9.05 and 9.50 have **three significant digits** each.

Would you like further details on significant digits? Here are some related questions:

1. How do significant digits differ from decimal places?
2. Why are trailing zeroes significant after a decimal point but not before?
3. What rules apply to counting significant digits in scientific notation?
4. How do significant digits impact accuracy in calculations?
5. How do you round numbers to a specific number of significant digits?

**Tip:** Always remember, leading zeroes are not significant, but trailing zeroes after a decimal point are significant!

Determine the number of significant digits in the given approximate numbers: 9.05; 9.50.

Learn how to determine the number of significant digits in decimal numbers 9.05 and 9.50. This explanation covers key concepts like non-zero digits and zero significance, suitable for students in Grades 5-7.

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