Students, have you heard the story of the mathematician Gauss when he was a child? Do you know how he calculated 1 + 2 = ·· + 99 + 100 = 5050 at once It's due tomorrow

Students, have you heard the story of the mathematician Gauss when he was a child? Do you know how he calculated 1 + 2 = ·· + 99 + 100 = 5050 at once It's due tomorrow

Add the head and tail, 1 + 100 = 2 + 99 = 3 + 98 =... = 50 + 51 = 101, there are 50 101, so it is equal to 5050