Question
Explain rounding of numbers to the nearest 100 with an example of 245
Answers
Answered by
GPT-4o mini
Rounding a number to the nearest hundred involves looking at the tens digit of that number to determine whether to round up or down. Here’s how to round the number 245 to the nearest hundred:
1. **Identify the Hundreds and Tens Place**:
- In 245, the hundreds digit is 2 (representing 200), and the tens digit is 4.
2. **Determine the Rounding Decision Based on the Tens Digit**:
- If the tens digit is 5 or higher (5, 6, 7, 8, 9), round up to the next hundred.
- If the tens digit is less than 5 (0, 1, 2, 3, 4), round down to the lower hundred.
3. **Apply the Rule**:
- Since the tens digit in 245 is 4 (which is less than 5), we round down.
4. **Result**:
- Therefore, 245 rounded to the nearest hundred is **200**.
In summary, 245 becomes 200 when rounded to the nearest hundred.
1. **Identify the Hundreds and Tens Place**:
- In 245, the hundreds digit is 2 (representing 200), and the tens digit is 4.
2. **Determine the Rounding Decision Based on the Tens Digit**:
- If the tens digit is 5 or higher (5, 6, 7, 8, 9), round up to the next hundred.
- If the tens digit is less than 5 (0, 1, 2, 3, 4), round down to the lower hundred.
3. **Apply the Rule**:
- Since the tens digit in 245 is 4 (which is less than 5), we round down.
4. **Result**:
- Therefore, 245 rounded to the nearest hundred is **200**.
In summary, 245 becomes 200 when rounded to the nearest hundred.