More Lessons for High School Regents Exam

Math Worksheets

High School Math based on the topics required for the Regents Exam conducted by NYSED.

For a positive integer n, n! is the product of positive integers less tan or equal to n.

Factorials - Evaluating Factorials!

Basic Info on Factorials and some numerical examples are provided.

This video provides three examples of how to evaluate factorials and how to simplify expression involving factorials.

A tutorial video on working with constant and variable factorial.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.