2600
First, let's take a look at the hundreds place.
2 6 0 0
We should ignore the 2 since it is in the thousands place.
Remember the rule: If the tens place is 50 and up, it should be rounded up.
If the tens place is 49 and below, it should be rounded down.
EX: 650 -----> 700 | 640 -----> 600
Since there is a 0 in the tens place, we should round it down.
605 -----> 600
Have a marvelous day!