1. The problem is to round the number 79955 to the nearest hundred. 2. Identify the digit in the hundreds place; in 79955, the hundreds digit is 9 (the third digit from the right). 3. Look at the digit to the right of the hundreds place to decide whether to round up or down. This digit is the tens place, which is 5. 4. If the digit in the tens place is 5 or greater, round the hundreds digit up by 1. Since it is 5, we round up. 5. Increasing the hundreds digit 9 by 1 causes it to roll over, making the thousands digit increase by 1. So, the new number is 80000. 6. Replace all digits to the right of the hundreds place with zeros, so 79955 rounded to the nearest hundred is $80000$. Final answer: $80000$