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This video explains how to multiply a four digit number by a 1 digit number. Using multiplication facts to help solve and find the product. Using examples this video explains step by step how to multiply the ones first, tens next, followed by hundreds and lastly the thousands. This video explains how to regroup the numbers to get the solution. A second way is shown with a rectangular model to expanded form of how to multiply 4 digits by 1 digit.

This videos explains how to divide a 4 digit number by a 1 digit number. This video uses tricks to use multiplication facts to solve examples. Looking at face values of numbers to solve problems starting in the ones, than tens, followed by hundreds and lastly thousands place. Another example is shown how to divide a 4 digit number by a 1 digit number using a standard algorithm.