Arithmetic Grade Five

Lesson Forty-three: Multiples of Ten

These problems are a little more difficult: 

  30 x 600 = 18000	400 x 20 = 8000		2000 x 400 = 800000

  600 x 400 = 120000	2000 x 2000 = 4000000	500 x 30 = 15000
Let's look at some more examples in more detail 

  ORIGINAL PROBLEM	REORGANIZED PROBLEM	ANSWER

     30 x 600 		   3 x 6 x 10 x 100	  18000

     400 x 800		   4 x 8 x 100 x 100	  320000

     400 x 300		   4 x 3 x 100 x 100	  120000

     600 x 2000		   6 x 2 x 100 x 1000	  120000
   
     7000 x 600		   7 x 6 x 1000 x 100	  4200000
You get to try a few for yourself on the next page.

Continue to next page of lesson