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Multiples - All Levels
This four page help packet covers multiples. It includes basic multiples, common multiples, and
Teacher misunderstanding: Yes, there are shortcuts to finding the LCM, but this usually confuses the average student. What helps a lot of students is relating multiplication to addition. Try this two page worksheet.  Web Version Printable Version
Factors - All Levels
This eight page help packet covers factoring. It includes common factors; GCF; basic divisibility
rules for 2, 3, and 5; prime numbers; and factor trees.