Lesson 9: Multiplying rational numbers (K-A)

S#	Lecture	Course	Institute	Discipline
1	Multiplying negative numbers review (K-A)	Lesson 9: Multiplying rational numbers (K-A)	Khan Academy	Basic and Health Sciences
2	Why a negative times a negative is a positive (K-A)	Lesson 9: Multiplying rational numbers (K-A)	Khan Academy	Basic and Health Sciences
3	Why a negative times a negative makes sense (K-A)	Lesson 9: Multiplying rational numbers (K-A)	Khan Academy	Basic and Health Sciences

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