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

Tong cua 2 so la so tu nhien bang 1092 . Neu o so hang thu nhat lan luot thay chu so hang don vi la 9 thanh 3 ,that chu so hang chuc la 7 thanh 1 thi duoc so hang thu hai .Tim hai so do ? ming cac ban giup minh giai bai toan nay nhe va nho co ca loi giai nha cac ban nhe ?

Lop 4a truong tieu hoc mua xuan xep hang 2 , hang 3 , hang 4 deu duoc mot so hang khong thua ban naoneu lay tong cac hang xep duoc do thi duoc 39 hang . Hoi lop 4a co bao nhieu ban

tam bia hinh binh hanh co do dai hai canh lien tiep lan luot la 4dm va 5dm.nguoi ta dinh cac bong hoa giay xung quanh tam bia do .biet rang cu 5cm co 1 bong hoa va cac goc tam bia deu dinh hoa . tinh so bong hoa gan tren tam bia do.

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 = 12, dong thoi chu so hang don vi = trung cong cua chu so hang tram va hang chuc. Hoi ban An tim duoc nhieu nhat may so thoa man yeu cau?

lừa và ngưa cung di , moi con mang tren minh mot so boc hang ,cac boc hang deu nang bang nhau , lua keu la mang nang , ngua noi :"ban keu noi gi? neu toi cho ban mot boc hang thi luc do chung ta moi mang nang ngang nhau. neu ban cho toi mot boc hang thi so boc hang cua toi se gap doi so boc hang cua ban" .tinh xem moi con mang ? boc hang

So ban tham gia dong dien the duc cua Truong Le Van Tam la mot so chan co hai chu so va khi cac ban do xep thanh 5 hang thi cung vua du.Hoi hoi dong dien the duc cua Truong Le Van Tam co nhieu nhat bao nhieu ban

cho day so 1,2,3,4,5,6,...1991,1992,day so tren co bao nhieu so hang tinh tong cua cac so hang do

Khoi lop 4 xep thanh 13 hang , moi hang co 15 hoc sinh . Khoi lop 5 xep thanh 17 hang , moi hang co 15 hoc sinh . Hoi ca 2 khoi co tat ca bao nhieu hoc sinh ? (giai bang 2 cach )