This is another “tool” for our toolbelt. Everyone MUST try this strategy!!
There are three steps to using expanded form. The first is to multiply the bottom factor to the ones of the top factor. The second step is to multiply the bottom factor to the tens of the top factor. The third step is to add the two products to each other.
27 ** Go to the math EnVision website to watch a tutorial
x 4 if you need more detail about this. 🙂