cho so 567 so do thay doi the nao neu a) viet them so 8 tan cung cua ban phai chu so do
b)viet so them chu so 4 tan cung ben trai
tim mot so co 2 chu so biet rang khi viet them chu sô 3 vao ben trai so do thi dươc so moi gap 7 lan so phai tim
tim so co hai chu so biet rang khi viet them chu so 2 vao ben trai so do thi duoc so moi gap 9 lan so phai tim
tim mot so co bon chu so biet rang khi viet them chu so 3 vao ben trai so do thi duoc so moi gap 9 lan so phai tim
tim so co hai chu so biet rang khi viet them so 2 vao ben trai so do thi duoc so moi gap 9 lan so phai tim
tim mot so co 4 chu so biet rang khi viet them chu so 3 vao ben trai so do thi duoc so moi gap 7 lan so phai tim
viet them chu so 3 vao ben phai mot so ta duoc so moi hon so phai tim 273 don vi tim so do
lam on viet ca loi giai
Tim so co hai chu so. biet rang neu viet them chu so 2 vao ben trai so do ta duoc so moi gap 5 lan so ban dau
tim so co bon chu so;biet rang khi viet them chu so 2 vao ben phai so do thi duoc so moi co nam chu so hon so phai tim 11306 don vi