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
khi viet them chu so 8 vao ben phai mot so tu nhien ta duoc so moi hon so cu332 don vi .Tim so tu nhien luc dau
Khi viet them chu so tham vao ben phai mot so tu nhien ta duoc so moi hon so cu 332 don vi. Tim so tu nhien luc dau.
tim mot so biet rang khi viet them chu so 6 vao ben phai so do ta duoc so moi hon so cu la 2562 don vi
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
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 1 so tu nhien , biet rang neu viet them 1 chu so 3 vao ben phai so do thi so do tang them 279 donvi