If a pizza is cut into 8 equal slices and you eat 3, how many slices are left?

To determine how many slices of pizza are left after eating 3 out of 8 equal slices, you start with the total number of slices, which is 8. Then, you subtract the number of slices eaten, which is 3.

The mathematical operation is expressed as:

8 slices - 3 slices = 5 slices.

This calculation shows that after eating 3 slices, there are indeed 5 slices remaining. This is the correct answer because it accurately reflects the subtraction of the eaten slices from the total available. Understanding this basic subtraction helps reinforce the concept of taking away from a whole, which is a fundamental math skill.