### Home > PC3 > Chapter 12 > Lesson 12.1.4 > Problem12-68

12-68.

Calculate the sum of the odd numbers between $100$ and $300$. Show all of your work.

What type of series is $101 + 103 + 105 + ... + 295 + 297 + 299$?
What is the formula for the sum of this type of series?