For example
Five is a factor of 20 because four fives make 20 exactly.
In Grade 3
Children arrange counters into equal rows and record every arrangement that works with none left over.
Watch out for
Children often forget that one and the number itself are factors too. Every number has at least those two.
Say it at home
Take twelve small objects and find every way to share them into equal rows.
How to Master Times Tables at Home
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