What must you do to make the equation below true?
81 X 9 = 801
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!
Thursday, March 27, 2008
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81*10-9=801
ReplyDeleteIf you look at it upside down and backwards, then it reads
ReplyDelete108=18*6, which is a true statement
If you flip it over, you get 108 = 18*6.
ReplyDeleteAlthough, technically, I didn't put any limits on what you could change, so the first answer is true, too. ;-)
So then you can also put a line through the '=' making it not equal to and it is still techically true.
ReplyDelete