Quote:
Originally posted by mattdavis11
I do it all the time when I have to do it in my head. Seems easier sometimes to multiply 6x60 and add on the twelve to get 372.
If I was asked what 15x17 was, it's easier knowing that 15 squared is 225, I then add 30 to it to get my answer.
Maybe that's the approach they have in mind, only using your mind.
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Exactly. Math is a language. Like any other foreign language teaching someone the mechanics of the language is different from teacing them to
think in a new language.
The way Matt is doing the calculation in his head is evidence of "fluency with numbers". That's what people do when they are really comfortable with numbers.