Tim so co 3 chu so biet rang chu so hang tram gap 2 lan chu so hang don vi va chu so hang don vi gap 3 lan chu so hang chuc Tim so do ?

Bai nay hoi kho mot chu nha!

tim mot so co 3 chu so biet rang neu doi chu so hang tram va chu so hang don vi cho nhau so moi lon hon so cu 792 don vi chu so hang don vi gap 3 lan chu so hang chuc

tim so co 3 chu so biet chu so hang chuc hon chu so hang tram 9 don vi, chu so hang tram tru di chu so hang don vi bang 4

Tim so co 3 chu so biet hieu cua chu so hang tram va hang don vi bang o,hieu cua chu so hang chuc va don vi bang 8

chữ số hàng trăm gap 2 lan hang don vi , chu so hang chuc gap 3 chu so hang tram . biet chu so hang don vi la 3 . tim trung binh cong cua so vua tim duoc voi so 126

Tim so le co bon chu so,biet chu so hang chuc gap 3 lan chu so hang don vi,chu so hang tram gap 2 lan chu so hang chuc va chu so hang nghin gap 4 lan chu so hang don vi

Tim so le co bon chu so,biet chu so hang chuc gap 3 lan chu so hang don vi,chu so hang tram gap 2 lan chu so hang chuc va chu so hang nghin gap 4 lan chu so hang don vi.

1 ,Tim so co 4 chu so biet chu so hang tram gap doi chu so hang chuc , chu so hang chua gap 3 lan chu so hang don vi 

2, Tim 1 so co 2 chu so , biet neu so do chia cho chu so hang don vi cua no thi dc thuong = 6 va du 5

3,Tim so co 4 chu so biet neu xoa chu so hang chuc thi so do giam di 1188 don vi

4, Tim so co 3 chu so neu so do cong voi tong cac chu so cua no thi = 555

            Giai Han Ra Nhe !

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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 ?