Chapter+4+Videos 

Chapter 4 Videos Section 4.1 - Divisibility and Factors media type="custom" key="11349818" Section 4.2 - Exponents media type="custom" key="11349800" Section 4.6 - Rational Numbers media type="custom" key="11506348" Section 4.8 - Dividing Exponents media type="custom" key="11584120" Section 4.9 - Scientific Notation media type="custom" key="11593284"