When rounding 689 to the nearest hundreds place, you look at the digit in the tens place, which is 8. Since 8 is greater than or equal to 5, you round up the hundreds place digit by 1. Therefore, 689 rounded to the nearest hundreds is 700.
690
500
80,000 is already rounded to the nearest hundreds.
0
0
712500
1400
64300
0
800
554600
6900