SOLUTION: What is the sum of the first 8 positive odd integers?

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Question 771925: What is the sum of the first 8 positive odd integers?
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
1+3+5+7+9+11+13+15 =
8 + (0+2+4+...14)
= 8+2(1+2+...7)
= 8 + 2(7)(8)/2
= 8 + 56
= 64
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