Tuesday, February 25, 2014

just for fun

Anders heard me telling Sigrid about some math problems that a friend of his wrote out, and how she also wrote that she loved math. He then asked if he could do some math problems—"you know, the ones with a blank." So I came up with these, and look how well he did! (I thought the second-to-last one would be particularly tricky, but he handled it with aplomb.)

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