tim tat ca cac so co hai chu so biet rang hieu cua so do va gom hai chu so ấy viet theo thu tu nguoc lai bang 63
( Ghi Thêm Lời Giải )
Tim so co hai chu so biet tong bang 13. Hieu cua so do voi so duoc viet boi cac chu so da cho theo thu tu nguoc lai va co tan cung la 7
Tim mot so tu nhien co 2 chu so,biet rang neu viet cac chu so cua so ay theo thu tu nguoc lai thi duoc so moi gap so ban dau 3 lan va 13 don vi
tim mot so tu nhien co 5 chu so biet rang so gom 5 chu so tren viet theo thu tu nguoc lai thi bang 4 lan so phai tim vay so do la
tim mot so tu nhien co hai chu so, biet rang neu viet cac chu so cua so ay theo thu tu nguoc lai thi duoc so moi, lay so moi chia cho so ban dau thi duoc thuong la 3 du 13
tim mot so tu nhien co 5 chu so biet rang so gom 5 chu so tren viet theo thu tu nguoc lai thi bang 4 lan so phai tim
so do la ?
tim hai so tu nhien co hai chu so biet tong hai chu so do bang 10 va neu viet theo thu tu nguoc lai thu duoc so moi kem so phai tim 54 don vi
tim so co 2 chu so. biet tong hai chu so cua no nho hon so do 6 lan va them 25 don vi vao tich cua hai chu so do se duoc so viet theo thu tu nguoc lai cua so do
Mot so co hai chu so bang 3 lan tong cac chu so cua no cong voi 7.Neu viet so do theo thu tu nguoc lai thi duoc so moi bang 7 lan tong cac chu so cua no cong voi 3.Tim so da cho