How do you round off the number 16?

Answer 1

You round off the number 16 to the nearest ten by rounding up to 20. You look at the number to the right of the number you want to round, if it is a 5 or above you round up and if it is a 4 or under you round down.

Answer 2

I am looking for the question "What's the smallest whole number that will round up or down to 202020 if we are rounding to the nearest ten.