Các câu hỏi tương tự
tim so tu nhien co hai chu so biet rang neu viet chu so 0 xen giua so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so phai tim neu viet chu so 1 vao ben traiso vua nhan thi so do gap len 3 lan
tim so tu nhien co 2 chu so ,biet rang neu viet them chu so 0 xen giua chu so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so can tim .Neu viet them chu so 1 vao ben trai so vua nhan duoc thi so do gap len 3 lan.
tim mot so co ba chu so biet rang chu so hang tram gap 2 lan chu so hang chuc,chu so hang chuc gap 3 lan chu so hang don vi
tim mot so chan co nam chu so khac nhau ,biet rang chu so hang chuc nghin gap 3 lan chu so hang don vi,chu so hang nghin gap 5 lan chu so hang chucva chu so hang tram gap 4 lan chu so hang chuc
tim so co ba chu so biet rang chu so hang don vi la 2va neu xoa di chu so 2 do thi duoc so moi gap 2 lan so co duoc khi xoa di chu so hang tram
tim so co 2 chu so biet rang neu them chu so 0 xen giua chu so hang chuc va hang don vi cua so ta duoc lon gap 10 lan so da cho neu them chu so 1 vao ben trai so vua nhan duoc thi so do tang lon hon 3 lan
Tim mot so chan co nam chu so khac nhau biet rang chu so hang chuc nghin gap ba lan chu so hang don vi chu so hang nghin gap 5 lan chu so hang chuc va chu so hang tram gap 4 lan chu so hang chuc .
Tim so co 3 chu so,biet trung binh cong cua cac chu so do la 6 va chu so hang tram gap 3 lan chu so hang don vi.
tim so co hai chu so biet chu so hang chuc gap ba lan chu so hang don vi va neu doi cho hai chu so do cho nhau thi duoc so moi nho hon so dau 18 don vi