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70=sixty-ten / 80=four-twenties / 90= four-twenty-ten (thelemmy.club)
submitted 3 weeks ago by to c/memes@lemmy.world
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[–] 2 points 3 weeks ago

70 = halfway to the fourth twenty

In other words, three twenties are 60, four twenties are 80, halfway between them is 70.

Same for the other ones: 50 is halfway to the third twenty, 90 is half more than the fourth twenty.

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