510
506 rounded to the nearest tens is 510
510
510
510
506 is currently not rounded to anything. If you round it to the nearest hundreds place you get 500. You can also round it to the nearest tens place where you'll get 510.
Five hundred ten 510
510
60
It is then 740 when rounded to the nearest ten.
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.