Calculate Total Employees: 20 Shops × 5 Average Workers Problem

To solve this problem, we'll proceed as follows:

• Step 1: Use the formula for finding the total number of employees based on the average and the number of shops.
• Step 2: Substitute the values given in the problem into the formula.
• Step 3: Perform the multiplication to find the total number of employees.

Now, let's implement these steps:
Step 1: The formula used is: Total employees = Average number of employees per shop $\times$ Number of shops.
Step 2: Substitute the given values: Total employees = $5 \times 20$.
Step 3: Calculate the result: $5 \times 20 = 100$.

Therefore, the total number of employees in the shopping mall is $100$.