Việt Nam tham dự Olympic toán quốc tế tại Argentina
Ngày 9/7, kỳ thi Olympic toán quốc tế lần thứ 53 đã khai mạc tại thành phố Mar del Plata (Argentina) với sự tham dự của hơn 500 thí sinh đến từ 100 quốc gia và vùng lãnh thổ.
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u4Thu7LDk+G7tuG7quG7hCLhu6o7ROG7hOG7oOG7kuG6o+G7hOG7sk3hu4TDncSD4buEIuG7quG7sOG7hOG7okDhu4R9IOG6o+G7hOG7tCrhu4Thu7Ih4bu24buE4bu24buq4buYIuG7hCLhu6zhu7bhu6rhu4QiIeG7sOG7hCLhu6oo4buw4buE4bug4buw4bum4bu04buE4bugQMSQ4bq6L3vhurzhurp74buE4bui4buyS11dw4Lhu4J74bq/4bu44bue4bqj4buC4bq84buZ4buq4buww5kg4buE4buqPeG7ouG7hF3hu7Dhu7bhu6rhu4Thu6Dhu7hOIuG7hOG7qOG7sE/hu7Dhu4Ru4buT4buV4buEXUsg4buE4bu2TeG6o+G7hOG7oMOT4buEIls84buEIuG7qk3hu7bhu6rhu4Thu7bhu6ph4bu24buo4buE4bu24buqTeG7hCLhu7hM4bu24buE4buqPeG7ouG7hOG7sjfhu7bhu6jhu4Thu55L4bu24buqROG7hCJb4bu44bu24buo4buE4bugQOG7hOG7okDhu4Thu7bhu6ph4bu24buo4buE4bu24buoNSjhu7Dhu4Qt4buE4bu24buqNeG7hOG7qOG7sEzhu7jhu4RdNeG7hOG7meG7qCrhu4Thur9P4bu44buE4buB4buq4buSIOG7hC3hu4Thu6DDk+G7hOG7qOG7sE3hu7bhu6rhu4Rs4buwT+G7sOG7hCLhu6o1POG7tuG7qOG7hGvhu7BQ4buy4bueXUThu4Thu6A1KeG7ouG7hMOh4bus4buE4bu24buqNeG7hGzhu7BP4buw4buEIuG7qjU84bu24buo4buE4buZ4bu44bucUOG7suG7hOG7seG7uEzhu7bhu4Thu6o94buixJDhurove+G6vOG6unvhu4Thu6Lhu7JLXV3DguG7gnvhur/hu7jhu57huqPhu4Lhurzhu4Phu5LhuqPhu4Thu7JN4buE4buy4buU4bu24buEIuG7qjbhu4RI4buE4bqzW+G7qFDhu7Yi4buw4bu2S+G7hOG7oMOS4bu24buo4buE4buiS+G7sOG7hOG7oiA64bui4buEIuG7quG7sOG7hH0gS+G7tuG7hCJbPeG7tuG7qOG7hOG7tuG7quG7mCLhu4QiW1Xhu7bhu4Qi4buqw5rhu4Thu6jhu7Ah4buw4buEIlvhu7jhu7bhu6jhu4Thu7JY4bu24buq4buEw6E44bui4buEIuG7uEzhu7bhu4Thu55N4bu24buq4buE4bui4buq4bu44buE4buqPeG7ouG7hF3hu7Dhu7bhu6rhu4Thu6Lhu5h74buEIlsg4bu24buo4buE4buqPeG7ouG7hHvhu6o74buEIuG7qirhu7bhu6hE4buEXUsg4buEw53hu6rhu7Dhu4QiO+G7hOG7ouG7qjbhu6Lhu4Thu6IgOuG7ouG7hCLhu6rhu7Dhu4Thu7ZN4bqj4buE4bu2w5Lhu7Thu4RHSkrhu4hE4buE4buiNOG7tuG7qOG7hCJO4buw4buEIuG7qk3hu7bhu6rhu4R74buqJuG7hOG7niDhu4Thu7JW4bui4buq4buE4bu2O+G7sOG7hCLhu7DDmuG7tuG7qOG7hOG7k0tb4buE4bueUOG7suG7hMWp4buySyJLxJAvxJDhurove+G6vOG7seG7qlDhu7jhu4TDoeG7sFAi4bu2S+G7tCvhurove+G6vA==