Round 1147545000 to the nearest building using only one decimal place 

To round 1,147,545,000 to the nearest billion, you focus on the billion digit and look at the digits following it.

1. **Find the billion digit:**  
   - The billion digit is 1 (since 1,147,545,000 is approximately 1.147 billion).
   
2. **Look at the first decimal place:**  
   - The next digit after the billion (the hundred-million digit) is 1.147 _5_ billion.

Since the digit after the decimal point is 5 (which is 5 or more), we round up.

**Final answer:** 1.1 billion (to one decimal place).

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Would you like more details on the rounding process or have any questions? Here are some related questions to further your understanding:

1. What is the rule for rounding up or down in decimal places?
2. How would you round numbers to two decimal places?
3. How does rounding work for negative numbers?
4. What is the difference between truncating and rounding?
5. How do you round large numbers when they are in scientific notation?

**Tip:** When rounding to decimal places, always check the digit right after the place you're rounding to!

Round 1,147,545,000 to the nearest billion using only one decimal place

Learn how to round 1,147,545,000 to the nearest billion, focusing on the rules of rounding and place value. This problem covers essential mathematical concepts, such as rounding up and understanding decimal places. Suitable for students in Grades 5-7.

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