2 = 1 * 2,2 + 4 + 6 = 12 = 3 * 4,2 + 4 + 6 + 8 = 20 = 4 * 5,... Calculate 2002 + 2004 + 2006 +... + 2050 according to the above formula

2 = 1 * 2,2 + 4 + 6 = 12 = 3 * 4,2 + 4 + 6 + 8 = 20 = 4 * 5,... Calculate 2002 + 2004 + 2006 +... + 2050 according to the above formula

The rule is that the sum of N consecutive even numbers starting from 2 is equal to n (n + 1) 2002 + 2004 + 2006 + +2050 =2000+2+2000+4+2000+6+...+2000+50 =2000×25+(2+4+6+...+50) =50000+25×26 =50650