Answer: 600
Step-by-step explanation: To round 629 to the nearest hundred, we first find the digit in the rounding place which in this case is the 6 in the hundreds place.
To decide whether to round up or down, we look at the digit to the right of the 6 which is 2. According to the rules of rounding, if the digit to the right of the rounding place is less than 5, we round down.
So in this problem, since 2 is less than 5, we round down. This means that the digit in the rounding place, 6, stays the same and we change all digits to the right of the rounding place to 0. So we have 600.
Therefore, 629 rounded to the nearest hundred is 600.
