To find the total number of pizza slices, you can use multiplication. If there are 9 students and each student has 4 pizza slices, you can calculate the total number of pizza slices as follows:
Total pizza slices = Number of students × Number of pizza slices per student
So, the calculation would be:
Total pizza slices = 9 students × 4 slices/student = 36 slices
Therefore, there are a total of 36 pizza slices.