• Gabe Bell@lemmy.worldOP
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    6 days ago

    Open excel (or any other spreadsheet app) or - at a push - the calculator app.

    Type in 45 * 45. You will get 2025. Then try 44 * 44 and 46 * 46. You don’t need a PhD to be able to do that :)

    Then you can use the same app to add up 1 - 9 and get 45, which will verify most of the post.

    The cube thing is a little more complex, but you should be able to work it out using the multiply and the memory function.

    (I checked it before I posted it :))