Question

[Van anh Cuc Nhay Ben]

tim  so co 3 chu so co tong cac chu so la 20 va ti so giua chu so hang tram voi chu so hang don vi la 2, con chu so hang chuc bang voi chu so hang tram.

giai ro rang nhe

Answer 1

[Dinh Thi Huyen Nga]

chu so hang tram gap 2 lan so voi chu so hang don vi ma chu so hang chuc lai bang hang tram nen chu so hang chuc cung chiem hai phan. Vi vay se co tong so phan la : 2+2+1=5

Cu giai nhu tong ti va so can tim la : 884

Answer 2

[Dinh Thi Huyen Nga]

so do la 884. Ban cu lam theo cach tong ti