7500
The sum is 7268. * * * * * No. It is 7399. 7500 if 101 is included.
The sum of the integers between 101 and 300 inclusive is equal to ((101+300) x 200) / 2 = 40100.
The sum of 2 to 200 = 10,100
201
7500
The sum is 7268. * * * * * No. It is 7399. 7500 if 101 is included.
The sum of the integers between 101 and 300 inclusive is equal to ((101+300) x 200) / 2 = 40100.
The sum of all the numbers 1 through 200 is 20,100.
The answer is zero !
101
The sum of the first 200 even numbers is 40,200.
200*50=10000
101
20100
The sum of the first 200 natural numbers is 20,001.
This is the way I would do it: The sum of the 1st & 100th numbers = the sum of the 2nd & 99th numbers = the sum of the 3rd & 98th numbers all the way to the sum of the 50th & 51st numbers; each of the sums equals 200. So I would multiply 200 by 50 (10000).