• ElderReflections@fedia.io
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    3 days ago

    Best I can figure is that the 1.42 was written as 42 with a superscript ¹ fron the line below (as a tens marker when adding 6 and 8)

    43.80 might have come from multiplying 1.32 by 4 but forgetting to do the 3?

      • tgt@programming.dev
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        3 days ago

        I’m guessing they did the 4 x 3, noticed they had to carry, accidentally wrote the carry in the wrong column, then immediately went and added that carry to their leftover 2, thus only counting 3 in total.