Các câu hỏi tương tự
tim mot so tu nhien co ba chu so biet rang neu tang chu so hang tram len n don vi va giam chu so hang chuc di n don vi thi ta duoc so co chu so gap n lan chu so da cho
tim so co 4 chu so biet chu so hang nghin,chu so hang tram,chu so hang chuc,chu so hang don vi ti le voi 2;1;2;3 va so do chia het cho 3
cho 1 so co 2 chu so biet khi ta bo chu so hang don vi cua so lon thi ta duoc so be va so lon bang 10 lan so be. Tim 2 so do
cmr mot so có 2 chu so chia het cho 7 khi và chi khi tong cua chu so hang chuc va 5 lan chu so hàng don vi chia het cho 7
( ai lam duoc thi minh se dung tat ca cac nick minh co tick , bao gom ca nick nay nhung phai nhanh trươc mung 5 Tet )
Cho so nguyen to n co 2 chu so hang chuc la x, hang don vi la y. Biet M=n/x+y. Tim n de M=2. Tim n de M dat gia tri nho nhat
Tim so chinh phuong co 4 chu so sao cho khi bot moi chu so di 1 don vi ta cung duoc so chinh phuong
Tim so chinh phuong gom 4 chu so biet rang so gom 2 chu so dau lon hon so gom 2 chu so sau 1 don vi.
tim mot so tu nhien co hai chu so biet rang so do bang lap phuong cua so tao boi chu so hang van va chu so hang ngan cua so da cho
tim chu so hang don vi biet A= 3^2013.2^2014