neidu3@sh.itjust.worksM to

Ask Lemmy@lemmy.worldEnglish · 3 days ago

What obsolete knowledge do you know by heart, and would like to share?

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What obsolete knowledge do you know by heart, and would like to share?

neidu3@sh.itjust.worksM to

Ask Lemmy@lemmy.worldEnglish · 3 days ago

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houstoneulers@lemmy.world
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2 days ago
Is this obselete? Did multiplication and boobies disappear?
- LaserTurboShark69@sh.itjust.works
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  I hope not but I assume the opportunities to bust this trick out in math class has been mostly diminished or forgotten about

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