1. Number and Algebra
Sigma Notation — Quiz
Test your understanding of sigma notation with 5 practice questions.
Practice Questions
Question 1
What does the sigma symbol $\sum$ usually mean in mathematics?
Question 2
Evaluate $\sum_{k=1}^{4} k$.
Question 3
Which expanded form matches $\sum_{n=1}^{3} (2n)$?
Question 4
In $\sum_{r=1}^{5} a_r$, what does the symbol $r$ represent?
Question 5
Write $7+14+21+28$ in sigma notation.