SOLUTION: What is the sum of the first 500 counting numbers.

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Question 97529: What is the sum of the first 500 counting numbers.
Found 2 solutions by mathslover, checkley71:
Answer by mathslover(132) About Me  (Show Source):
You can put this solution on YOUR website!
Sum of first n numbers is given by n%28n%2B1%29%2F2
sum of first 500 numbers = 1+2+ 3+ ...+500
=500%2A501%2F2
=125250

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
SUM OF THE FIRST N NUMBERS IS (N+1)N/2
(500+1)500/2
501*500/2
250,500/2
125,250 ANSWER FOR THE SUM OFTHE FIRST 500 NUMBERS.