Category Archives: Number recreation

Adela’s math puzzle

Time to brag on my 7-year-old. Adela has been thinking up math problems for me each night. Tonight it was the following. Start with a number, say 2, and do all four operations on it: 2+2=4, 2*2 = 4, 2-2 … Continue reading

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This will never happen again…

Here’s a quick, fun tidbit about dates. I was thinking about the factorization of 2013 and the next few years, and I noticed something cool. (Note this is good for psyching out math contests, which often have problems with the … Continue reading

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