Multiplying Whole Numbers SWBAT multiply with zeros in one or more whole-number factors

Long way 237 x Same as: (237 x 0) 7440 Same as: (237 x 20) Same as: (237 x 600) 230,640

The quick way  Multiply the digit in the ________ spot by each of the digits in the top number.  If there is a __________ at the end of the number, skip step 1 and pull the _________ down to the ______ of your answer. ones tens hundreds zero end

Examples  237 x 380  593 x 506  817 x 609  385 x 806  2365 x 580  6549 x 302

The Distributive Property  How else can I write the number 902?  The distributive property tells us that we can multiply each number by the second, and then add them together a(b+c) = ab + ac

The Distributive Property  902 x 41,736 ( ) x 41,736.  506 x 831  780 x 311  470 x 1211