Worksheet, Formative Assessment, and Activities from orgLib.comThese worksheets can be used in multiple modes. See this page for how it works: http://www.orglib.com/howitworks_s.htmlSupports the following Standards of Mathematical Practice• 2 Reason abstractly and quantitatively.• 5 Use appropriate tools strategically.• 6 Attend to precision.• 7 Look for and make use of structure.• 8 Look for and express regularity in repeated reasoning.