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Multiplication: The Box Method

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by

Jamie Cluchey

on 13 August 2011

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Transcript of Multiplication: The Box Method

Multiplication: Step 3 Step 1 Step 2 The Box Method Step 4 Add up the numbers in the boxes.
Your sum is the product of the two
larger numbers. First, take the two numbers that you are multiplying and
break them down by place value. Next, place the numbers outside of the box. It doesn't matter whether you start on the top or the side, but make sure to keep the partner digits together! You now have a multiplication grid. Multiply the numbers in the corresponding columns and rows. Write your answers in each box. The box method breaks larger numbers up by place value to make the process simpler. While it may take more time than the standard algorithm at first, it is a great way to make sure that mathematicians know why the multiplication process works. 28x17 28 = 20
8 17 = 10
7 28 20 8 17 10 7 20 8 10 7 200 80 140 56 200
80
140
+ 56 ___ 476 28
x17 ___ 476
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