Các câu hỏi tương tự
tim mot so co hai chu so, biet rang khi viet them so 4 vao ben trai so do , ta duoc mot so gap chin lan so phai tim
Tìm so co hai chu so biet rang neu ta viet them chu so 2 vao ben trai va ben phai so do ta duoc so moi gap 36 lan so phai tim.
tim so co 4 chu so ,biet neu viet them chu so 5 vao ban phai so do thi co gia tri gap 5 lanso nhan duoc sau khi viet them chu so 1 vao ben trai so phai tim
tìm số tự nhiên co 4 chu so biet rang khi viet them chu so 7 vao ben phai so do ta duoc so co 5 chu so lon hon phai tim 11329 don vi
tim so co 3 chu so,biet rang khi viet them chu so 1 vao ben trai so do thi duoc so co 4 chu so gap 9 lan so phai tim
tim mot so co hai chu so ,khi viet them chu so 9 vao ben trai so do ta duoc 1so gap 13 lan so phai tim
tim so co ba chu so, biet rang neu viet them mot chu so 5 vao ben phai so do, ta duoc so moi lon hon so can tim 1130/
so do la..
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 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