Free
Math Games 
by HelpingWithMath.com Prime Number or Composite Number? 

This work is licensed under a Creative Commons AttributionShareAlike 2.5 Canada License. 
Related ResourcesThe resources listed below are aligned to the same standard, (4OA04) re: Common Core Standards For Mathematics as the Factors and multiples game shown above. Find all factor pairs for a whole number in the range 1 to 100. Recognize that a ... Charts
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Worksheets
