Arithmetic Grade Four

Lesson Forty-five: Column Multiplication

Inspect this multiplication problem: 

     24
    x 2 
   -----
The top number in this problem now has two digits. In this example the answer will also have two digits: 

     24
    x 2 
   -----
     48
Here are a few more examples for you to study: 

	 23			  34			  90
	x 3			 x 2			 x 1
       -----			-----			-----
	 69			  68			  90
Now you will try a few of these yourself.

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