SOLUTION: find the sum of the first 400 whole numbers

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Question 65869: find the sum of the first 400 whole numbers
Answer by Nate(3500) About Me  (Show Source):
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Whole Numbers = 0,1,2,3,4,5,6,7....
Use Sum of Arithmetic:
Sum = n(t0 + t1)/2
n = 400
t0 = 0
t1 = 0 + 399*1 = 399
Sum = 400(0 + 399)/2 = 200(399) = 79,800