I came across a mind blowing arithmetic pyramid and couldn’t resist the challenge of figuring out how it worked – Here’s the magic pyramid that held me in awe (I can’t give credits, because I don’t know who discovered it) So why does it work? It turns out to rely on that magic little number 9, so let’s reverse engineer it – I found it easier to start with the big number so that I could figure out the logic. Notice how taking one of the starting numbers away shifts all of the numbers…
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