Average 500

Middle School Madness - February 18, 2019


Average 500 Image

Find the average (mean) of the first 500 terms in the following sequence of numbers.

1, -3, 5, -7, 9, -11 . . .

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Immediately after your correct answer is submitted, your name will be posted here.

NOTE: Anyone can answer Middle School Madness questions, but only participants 15 years of age or younger will be awarded points and displayed in the rankings.

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