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2026-10-25 08:59:19 UTC
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npub1r0…ddlsg on Nostr: I do have some of this kind of little maths memorized, but only enough that there's ...

I do have some of this kind of little maths memorized, but only enough that there's usually one near by - e.g. 7*5 = 35, so if I need 7*6 all I have to do is add another 7 to that one 😁

Obviously factor 10 is also readily avaliable, so I might get to 7*8 by going "So that's 70-2*7, so 14, that puts me at 60-4, that's 56"