1. **State the problem:** Round the number 52149 to the nearest hundred. 2. **Recall the rounding rule:** To round to the nearest hundred, look at the tens digit. 3. **Identify digits:** The number is 52149. - Hundreds digit: 1 (in 149) - Tens digit: 4 4. **Apply the rule:** If the tens digit is 5 or more, round the hundreds digit up by 1. If less than 5, keep the hundreds digit the same and change tens and ones digits to zero. 5. Since the tens digit is 4 (less than 5), we keep the hundreds digit 1 and change tens and ones to zero. 6. **Final rounded number:** $$52100$$ **Answer:** 52100