Multiplying Whole Numbers Using an Area Model
Here is a visual way to solve multiplication problems involving multidigit numbers.
Multiplying a Whole Number by a Decimal
This video shows how to multiply a whole number by a decimal in two ways  using base10 blocks and with decimal squares.

This video demonstrates how to multiply a whole number by a decimal using base10 blocks. It also shows how to check your answer using the standard algorithm.



Multiplying a Decimal by a Decimal
This video shows how to multiply a decimal by a decimal using a decimal model.

This video shows how to multiply a decimal by a decimal using the standard algorithm.


