tim mot so co hai chu so biet rang neu viet them chu so 3 vao ben trai so do ta duoc so moi ( co ba chu so ) bang 5 lan so phai tim
tim so co ba chu so biet rang neu viet them chu so 1 vao ben phai so do thi ta duoc mot so gap 3 lan so co duoc bang cach viet them chu so 2 vao ben trai so do
tim 1 so co 2 chu so biet rang neu viet them chu so 3 vao ben trai so do ta duoc so moi bang 5 lan sô phai tim
tim 1 so co 2 chu so biet rang neu viet them vao ben trai ben phai so do 1 chu so 5 ta duoc 1 so moi co 4 chu so gap 75 lan so phai tim
Tim mot so tu nhien co 5 chu so , biet rang neu viet them 2 chu so vao ben phai so do thi duoc so lon gap 3 lan so viet them chu so 2 vao ben trai so do .
TIM MOT SO TU NHIEN CO HAI CHU SO,NEU BIET,NEU VIET THEM CHU SO 0 VAO BEN PHAI SO PHAI TIM VA MOT CHU SO 1 CHU SO1 VAO BEN TRAI SO DO THI TA DUOC MOT SÔMI BANG50 LAN SO PHAI TIM
tim 1 so tu nhien co 3 chu so, biet rang neu viet them chu so 3 vao ben trai so do ta duoc so moi bang 9 lan so phai tim?
so do la:............................................................................................
tim mot so co hai chu so biet rang neu viet them chu so 0 xen vao giua chu so hang chuc va hang don vi cua so do ta duoc so moi va neu viet them chu so hai vao ben trai so moi thi ta duoc mot so gap 6 lan so moi do
tim mot so tu nhien co 3 chu so biet rang neu viet them chu so 2 vao ben phai so do thi duoc so moi gap 17 lan so phai tim