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Sigma Notation of a Series

Master sigma notation of a series with interactive lessons and practice problems! Designed for students like you!

Understanding Sigma Notation of a Series

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Video explanation of this concept

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Beginner

Start here! Easy to understand

Beginner Explanation

Sigma notation uses $\Sigma$ to represent the sum of series in a concise way.
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Practice Problems

Test your understanding with practice problems

1

Quick Quiz

Single Choice Quiz
Beginner

What does $\Sigma_{i=1}^{4} i$ equal?

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2

Real-World Problem

Question Exercise
Intermediate

Teenager Scenario

A teenager starts with $3 of pocket money in the first week and receives $1 more each subsequent week for 5 weeks. Represent the total amount received using $\Sigma$ notation and calculate the total.
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3

Thinking Challenge

Thinking Exercise
Intermediate

Think About This

If the sum of the first $n$ odd numbers is given by $\Sigma_{i=1}^{n} (2i-1)$, find $n$ when the sum is 49.

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4

Challenge Quiz

Single Choice Quiz
Advanced

What does $\Sigma_{k=1}^{n} (3k - 2)$ equal when $n = 5$?

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Recap

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Review key concepts and takeaways

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