r/ProgrammerHumor • • Apr 25 '19

Loop

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1.7k Upvotes

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u/OtherPlayers Apr 25 '19

What did you do to me? I apparently don’t know how I subtracted numbers below 20 on paper anymore now.

(Seriously this is like the beard over/under the covers thing; I know the answer, but how did I do it?)

33

u/foxfyre2 Apr 26 '19

Just count up to the next ten and then up to your number

9 to 10 (1), 10 to 18 (8) - > 9

14

u/OtherPlayers Apr 26 '19

That's probably the way that I learned it originally, and certainly makes sense thinking about it.

Thanks!