Round 7.77777 to the nearest thousand?

Answer 1

Assume the question should read, "Round 7.77777 to the nearest thousandth ?"

The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1".

The first figure to be discarded is the fourth 7 after the decimal point. As this is 5 or more then the previous figure (the third 7 after the decimal point) is increased by 1 (to 8).

7.77777 rounded to the nearest thousandth is 7.778.