Final answer:
The bakery worker ordered 2,700 more eggs than were necessary, calculated by subtracting the 300 needed eggs from the 3,000 ordered eggs.
Step-by-step explanation:
The bakery worker ordered 3,000 eggs instead of the 300 that were needed. To find out how many more eggs were ordered than needed, we perform a simple subtraction:
3,000 eggs (ordered) - 300 eggs (needed) = 2,700 eggs
Therefore, the bakery worker ordered 2,700 more eggs than what was necessary for their baking needs.