I was playing with my Mensa book while traveling to Seattle, and played a lot with the puzzles with matchsticks. If you have ever played Professor Layton, You’ve encountered some of these puzzles that say “move four matchsticks to leave three squares” and such. I like the ones that use the matchsticks to make Roman numerals to make equations that need a matchstick or two to move to work. Anyway, I reproduced two of them for you on this Mathematical Monday.
Add one matchstick to make this fraction equal 1.
Can you make this equation work without moving a single matchstick?
Answers in the first comment (once I put them there!). Like these? Here’s a few more.