1. The problem is to round the number 90234 to the nearest hundred. 2. The rule for rounding to the nearest hundred is to look at the tens digit (the digit immediately to the right of the hundreds place). 3. If the tens digit is 5 or greater, round the hundreds digit up by 1. 4. If the tens digit is less than 5, keep the hundreds digit the same and change the digits to the right to zero. 5. In 90234, the hundreds digit is 2 and the tens digit is 3. 6. Since 3 is less than 5, we keep the hundreds digit 2 and change the tens and ones digits to zero. 7. Therefore, 90234 rounded to the nearest hundred is 90200.