tim so co hai chu so biet tong cua hai chu so do la so lon hon 10.ti so cua chu so hang chuc va chu so hang don vi la 2/3

tim so co 3 chu so. Biet trung binh cong cua 3 chu so la 2 va chu so hang tram bang tong chu so hang chuc va hang don vi. Tim 3 chu so do ?

tim mot so biet so do nho hon 800 va chu so hang tram nho hon chu so hang chuc , chu so hang chuc nho hon chu so hang don vi va tong cac so cua chu so cua so do bang 24

tim so co hai chu so biet rang neu doi cho 2 so do thi duoc so moi,tong moi va so phai tim la 132 va chu so hang  chuc hon chu so hang don vi la 4

tim so co hai chu so biet rang neu doi cho 2 so do thi duoc so moi,tong moi va so phai tim la 132 va chu so hang  chuc hon chu so hang don vi la 4

tim so co 3 chu so biet chu so hang tram nho hon chu so hang chuc,chu so hang chuc nho hon chu so hang don vi va tong cac chu so do bang 6

tim so tu nhien co hai chu so biet rang neu viet chu so 0 xen giua so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so phai tim neu viet chu so 1 vao ben traiso vua nhan thi so do gap len 3 lan

ban an phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu bang 12 dong thoi chu so hang don vi bang trung binh cong cua chu so hang tram va hyang chuc hoi ban an tim duoc nhieu nhat bao nhieu so thoa man yeu cau

Tim mot so co hai chu so biet khi viet so do theo tu tu nguoc lai ta duoc so moi kem son phai tim 18 don vi va biet tong hai chu so do la 8