this post was submitted on 11 Apr 2024
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Science Memes

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[–] NounsAndWords@lemmy.world 2 points 2 years ago (2 children)

I check on the calculator I have with me at all times. It's $24.50

[–] exocrinous@startrek.website 2 points 2 years ago* (last edited 2 years ago)

I calculated it in my head without memorising all the multiplication tables. I just realised that 7*3.5 is equal to (7*5+7*2)/2. And that 49/2 is equal to 40/2+9/2. Easy peasy. This is why I failed second grade math, because multiplication tables are only useful for doing operations a few seconds faster.

[–] KevonLooney@lemm.ee -1 points 2 years ago

Yeah but that doesn't work when you need it most on "The Price is Right".