khi viet them chu so 2 vao ben trai 1so co 3 chu so thi duoc so moi hon so cu la bao nhieu don vi
khi viet them chu so 7 vao ben trai cua so co 3 chu so thi so moi hon so cu bao nhieu don vi
cho mot so co 2 chu so.Neu viet them chu so 4 vao ben trai so do thi duoc so moi.Tong cua so moi va so da cho bang 570.Tim so da cho
1.tim 1 so biet neu viet them vao ben phai so do co 1 chu so 6 thi ta duoc 1 so moi hon so da cho la 888 don vi
2.cho 1 so co 2 chu so biet neu viet them 1 chu so n vao ca dang truoc va dang sau so do thi ta duoc 1 so moi co 4 chu so . So moi gap 21 lan so da cho . Tim so da cho va so n viet them
KHI VIET CHU SO 5 VAO BEN TRAI MOT SO CO BON CHU SO THI DUOC SO MOI HON SO CU.......DON VI ?
khi viet them chu so 2 vao ben trai so co 3 chu so thi duoc so moi hon so do luc dau 20 don vi
Cho 1 so co 2 chu so , neu viet them 15 vao ben phai so do thi duoc so moi hon so da cho 2094 don vi . tim so do ?
cho mot so co hai chu so neu viet them 15 vao ben phai so do thi duoc so moi hon so da cho 2094 don vi tim so do
cho mot so co 3 chu so.neu viet them chu so 3 ben trai so do thi duoc so moi.tong cua so moi va so da cho la 4518.tim so da cho