The tens nearest to this number are 60 and 70, because 65.152 is between 60 and 70.
We ask ourselves: which is it nearer to, 60 or 70?
Well, 65 is as near to 60 as it is to 70 but 65.152 is bigger than 65 so it's nearer to 70. Therefore if we round up 65.152 to the nearest ten we get 70.
