Arithmetic Grade Four

Lesson One hundred and twenty-five: Division Patterns

Study the following division problems. 


	8 / 4 = 2

        80 / 4 = 20

        800 / 4 = 200
  
        8000 / 4 = 2000
You should notice that the number of zeroes in the first number and the answer remains the same and that 8 divided by 4 remains 2 regardless of the number of zeroes involved.

Here's a slightly more complicated example. 


       63  /  9  =  7

       630  /  9  =  70
  
       6300  /  9  =  700

       63000  /  9  =  7000
You can see that the number of zeroes in the first number and the answer remains the same and that 63 divided by 9 remains 7 regardless of the number of zeroes involved.

Here's a slightly tricky example: 


        20  /  5  =  4

        200  /  5  =  40

        2000  /  5  =  400

        20000  /  5  =   4000
Remember that when in doubt, you can always check your answer with multiplication.

Click here to go to next page