Math can be complicated! The upside down division method saves a lot of time and energy. The same method can be used to solve four types of problems: prime factorization, greatest common factor, least common multiple, and simplifying of fractions.
This packet contains excercise problems in sequential order. Students get to use the method many times before it gets more challenging.
A quick quiz is included at the end and an answer key.
I did not invent this method; I merely created a practice packet.