The full name is the national high school mathematics joint competition, referred to as the national high school mathematics league. The 20 15 math league ended on June 10, and it was divided into initial test and additional test (also called retest). The contest was awarded the first prize and the second prize by the provinces (there should be a third prize in this year's contest). The number of winners of the first prize is assessed by provinces in chinese mathematical society, and the second and third prizes are assessed by provinces.