Add Whole Numbers · Exercise 78

Calories Fred had a grilled chicken sandwich, a small order of fries, and a $\text{12}-\text{oz}$ chocolate shake for dinner. The restaurant’s nutrition chart lists the following calories for each item:
Grilled chicken sandwich – $420$ calories
Small fries – $230$ calories
$\text{12}-\text{oz}$ chocolate shake – $580$ calories
What was the total number of calories of Fred’s dinner?

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Prealgebra 2e · §1.2 Add Whole Numbers · Exercise 78