Find the sum of the first 5 consecutive positive odd integers?

answers:
Mike G say: Sum =1+3+5+7+9 = 25

Como say: 
1 + 3 + 5 + 7 + 9 = 25

Puzzling say: Here's a quick shortcut.
The sum of the first N consecutive positive odd integers is always N².
You can see that below:
1 = 1 < 1²
1 + 3 = 4 < 2²
1 + 3 + 5 = 9 < 3²
1 + 3 + 5 + 7 = 16 < 4²
Answer:
1 + 3 + 5 + 7 + 9 = 25 < 5²
Now impress your teacher by figuring out that the sum of the first 100 consecutive positive odd integers is 10,000 :)

JonZ say: Simple, the first five, consecutive, positive odd numbers are: 1, 3, 5, 7 & 9. Add them together and you get 25.

Captain Matticus, LandPiratesInc say: 1 + 3 + 5 + 7 + 9 = 25
The sum of the first n consecutive odd integers is n^2

alex say: Hint:
the first 5 consecutive positive odd integers are 1 , 3 , 5 , 7 , 9
