Question

1. $\sum_{i=1}^{6} 10$

Explanation:

Step1: Understand the summation notation

The notation $\sum_{i = 1}^{6}10$ means we are adding the number 10, 6 times.

Step2: Calculate the sum

Since we are adding 10 six times, we can use the formula $n\times a$, where $n = 6$ (the number of terms) and $a=10$ (the value of each term). So the sum is $6\times10$.

Answer:

$60$