SOLUTION: what is the sum of the first 1,800 consecutive numbers?
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Question 479049: what is the sum of the first 1,800 consecutive numbers?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If you mean the integers 1 to 1800:
There are 1800 of them
Make 900 pairs, 1 & 1800, 2 & 1799, etc
you have 900 pairs and each pair = 1801
Sum = 900*1801 = 1620900
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