• acockworkorange@mander.xyz
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    4日前

    Do it!

    Especially useful for temperatures.

    For miles, I mentally break it down like so; 1 + 1/2 + 10%. So sum the distance with it’s half and add 10%.

      • acockworkorange@mander.xyz
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        4日前

        I am always amused by other people’s math shortcuts. There’s just so many ways to do mental calculations. For all the deserved criticism “New Math” got, I do appreciate them adding mental math shortcuts in the curriculum.