Khan Academy
Khan Academy: Multiplying With Area Model: 78 X 65
Sal Kahn uses an area model to multiply 78x65.
Khan Academy
Khan Academy: Using Area Model and Properties to Multiply
Sal uses place value, the distributive property, associative property, and an area model to show more ways to multiply.
Khan Academy
Khan Academy: Multiplying With Area Model: 6 X 7981
Sal uses an area model to multiply 6 x 7981.