The topics in this unit focus on introduction of factorial notation and practice with calculating factorials, factorial multiplication, and factorial division. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Factorial Calculation - Addition or Subtraction over Similar Factorial

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


What is the value of this factorial expression?

9!+8!7!\frac{9! + 8!}{7!}

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