The sum of integers from 1 to 2008 = 2008*2009/2 = 2017063
2550
x+x+1=1002x=99x=49.5x+1=50.549.5+50.5=100.0
55
To calculate the sum of the numbers 1 to n, the formula is: sum = n(1 + n) / 2 So, an equation to find the sum of the integers 1 to 2010 is: sum = 2010 x (1 + 2010) / 2
101
It is 100*(100+1)/2 = 50500.
It is 2500.
n(n+1)/2 5050
The following will sum all integers from 1-100. Adjust according to your needs.int sum = 0;for (int i = 1; i
SUM = 0: FOR N = 1 to 100: SUM = SUM + N: Next N: PRINT CHR$(11); "Sum ="; SUM: END
To find the sum of the first 100 integers, you first add 1 plus 100 (the first and last numbers of the set) and get 101. Do the same with the next two integers, 2 and 99 and you'll get 101. Since you are adding two integers at a time and there are 100 integers between 1 and 100, you'll get 101, fifty times. Therefore, a shortcut would be to simply multiply 101 times 50 and get 5,050.
Write a program to find the number and sum of all integers from 100 to 300 that are divisible by 11
The sum of integers from 1 to 2008 = 2008*2009/2 = 2017063
The sum of all integers from 1 to 20 inclusive is 210.
It's easy to work it out yourself.... Multiply 100 by 49, add 50, add 100 - and you have your answer !
The sum of the integers from 1 through 300 is 44,850.