Why is negative times negative positive? PART I (James Tanton) Why is negative times negative positive? PART I (James Tanton) begin-post-stats DrJamesTanton • 13K views end-post-stats begin-duration 7:47 end-duration Math topics: _Integers_##Integers##_Natural_number_##Natural number##_1_(number)_##1 (number)##_5_(number)_##5 (number)##_Geometry_##Geometry##_Geometry_##Geometry##_Commutative_property_##Commutative property##_Rectangle_##Rectangle##_Group_(mathematics)_##Group (mathematics)##_Mathematics_##Mathematics##_Sign_(mathematics)_##Sign (mathematics)##_Multiplication_##Multiplication##_Mathematics_##Mathematics Other topics: _Mathematics_education_##Mathematics education##_Multiplication_and_repeated_addition_##Multiplication and repeated addition##_Negative_number_##Negative number##_Arithmetic_##Arithmetic video-id: nJqyr8h22nY channel_DrJamesTanton_ So What Learning Geometry , Integers , Mathematics , Mathematics education Monday, January 22, 2018 Share Share
