Round 779.7 to the nearest whole number?

To round 779.7 to the nearest whole number, we look at the digit in the tenths place, which is 7. Since 7 is 5 or greater, we round up the whole number to 780. This is because when rounding decimals, if the digit to the right of the place we are rounding to is 5 or more, we increase the digit in that place by 1.