How do you round off this number to nearest ten6739108?

Answer 1

To round to a place value column, look at the digit in the next place value column to the right and if it is 0-4 the number rounds down, otherwise being 5-9 it rounds up.

the place value to the right of the tens is the units which contains the digit 8, which being 5-9 means the number rounds up:

6739108 → 6739110 to the nearest ten.