A customer uses a $20 bill at a self check-out register to pay for products totaling $14.50. The customer is concerned they did not receive the proper change. How much money should they have received back from the automated register?

Subtract:

20.00 - 14.50 = ?

To determine how much money the customer should have received back from the automated register, we need to find the difference between the amount paid and the total cost of the products.

Given:
Amount paid by the customer: $20
Total cost of the products: $14.50

To find the change received, we need to subtract the total cost from the amount paid:

Change received = Amount paid - Total cost

Change received = $20 - $14.50

Change received = $5.50

Therefore, the customer should have received $5.50 in change from the automated register.