• rockSlayer@lemmy.blahaj.zone
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    1 day ago

    What’s the problem with this method? I figure out tips through mental math, without any paper. This is just explaining how I do that mental math

    • Lung@lemmy.world
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      21 hours ago

      Yeah you did it in the hardest way possible hahaha

      Just subtract 17 from 100 to get the cents. 83. There, done. Or at least 100 - 10 - 7

      • rockSlayer@lemmy.blahaj.zone
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        21 hours ago

        I can’t do mental math that easily. I struggle with visualizing it, I think better in multiples of 5, and subtraction is more intuitive to me