It is already rounded to the nearest tens.
210
210
206 rounded to the nearest 100 is 200. Rounded to the nearest ten is 210.
200
210
It is at the nearest 10, so 210 is the answer.
210
210
It is 210 rounded to the nearest ten.
206 rounded to the nearest 100 is 200. Rounded to the nearest ten is 210.
210
210
210
210
210
200
210
It is at the nearest 10, so 210 is the answer.