How can I represent 307 in two significant Figures?

This may really be a simple question, but I have tried everything and can't come up with a right answer. I also tried representing it in scientific notation.
Thanks

Whisky002008-09-21T00:07:06Z

Favorite Answer

Round up to get 310, the 31 part is the two significant figures. You can also write this as 3.1 * 10^2.