The sum of the first 20 integers is 190.
-15
105625
The sum of the integers from 1 to 100 inclusive is 5,050.
The sum of the first 1,000 whole numbers is 499,500.
The sum of the squares of the first 1000 positive odd integers (from 12 to 19992) is 1333333000.
The sum of the positive integers from 1,000 to 1,100 inclusive is: 106,050
The sum of the first 20 integers is 190.
The sum of the first 250 integers is 31,125.
Using Gauss's method, 1+2+3...1000= 500x1001=500500 Answer:500500
The sum of the first ten positive integers is: 55
The sum of the first 500 positive integers is: 125,250
The sum of the first 30 positive integers is: 465.
The sum of the first 60 positive integers is 1830.
The sum of the first 200 positive integers is 19,900.
The sum of the first 201 positive integers is 20100 if you include 0 (i.e. from 0 to 200). If you sum the integers from 1 to 201 instead, the sum is 20301.
The sum of the first eleven positive odd integers is 121.