Well, darling, 190 rounded to the nearest ten is 190. It's already sitting pretty on that ten, so there's no need to move it anywhere. Keep on keeping on!
When rounding 190 to the nearest ten, you look at the digit in the tens place, which is 9. Since 9 is greater than or equal to 5, you round up. Therefore, 190 rounded to the nearest ten is 200.