Khan Academy Static

Topic D includes lessons 9-14 and covers writing addition and subtraction expressions, writing and expanding multiplication expressions, factoring expressions, distributing expressions, and writing division expressions.

9107_Distributive_property_over_addition.html

9109_Factor_with_the_distributive_property.html

9108_Distributive_property_over_subtraction.html

9111_Equivalent_expressions.html

9102_Terms_factors_coefficients.html

9106_Combining_like_terms_with_distribution.html

9104_Combining_like_terms.html

9101_Expression_value_intuition.html

9103_Intro_to_combining_like_terms.html

9110_Distributive_property_with_variables.html

9105_Combining_like_terms_example.html