I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Wednesday, February 01, 2006
Move the Match
In each of the following three, move a single match to form valid equations. The = and + are composed of two matches each.