Question

Tim mot so co ba chu so biet trung binh cong cua ba so do bang 2va chu so hang tram bang tong cac chu so hang chuc va hang don vi

Answer 1

Giai:

Tong ba chu so la 2x3=6

Chu so hang tram hay tong cac chu so hang tram va don vi bang:

6:2=3

Cac cap so co tong bang 3 la:

(3;0)va (2;1)

Vay cac so phai tim la: 303;330;312;321

Answer 2

dễ zậy mà cũg fải hỏi à ông cháu !!!!! Công Tử họ Phạm

Answer 3

312 hoac 321