What is 0.786 to 2 decimal places?

Answer 1

for 2 d.p., firstly count the first two digits after the full stop, then look at the third. If the third place is equal to or greater than 5 then raise the second by 1, otherwise it stays the same.

The reasoning behind this is that it gives the closest reasonable result with a shorter number. For example, if you had $17.23 and somebody asked you how much you had, you would probably say "about $17, similarly for $43.78 you would likely say $44