Riddle: How can you insert the numbers 1-9 inclusive each only, into the calculation to arrive at the answer 100?
( - ) + + - - - = 100
Answer: ( 7 - 5 )² + 96 + 8 - 4 - 3 - 1 = 100
Source: https://www.riddles.com/index.php/3175
Century Puzzle by don orr Riddle
