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?? Humpleupagus ?? (humpleupagus@eveningzoo.club)'s status on Monday, 08-Apr-2024 15:03:42 JST ?? Humpleupagus ??
I visually see 27 smash down on 48 and 75 pops out. If it's below four digits, I don't really have to think about carrying. It just happens. Larger numbers, I'd have to work them out.
I was able to multiply 15 digits + out in my head when I was in high school, but I"m not that sharp anymore though.