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Mantej Rajpal ↑
@mantej.eth
If you needed to quickly add 1+2+3+4+5+6+7+8+9 in your head how would you do it? No calculators and no need to Google any math tricks or the best way to do it or anything like that. Just curious how others think!
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Cartesse🎩
@cartesse.eth
go for all 10 then easy calculs likee 9+1 + 2 + 8 + 3+7 +... then you figure it's 50 without calculating and just be confident haha
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