6th Grade Math Textbook, Progress

Divide Integers

5-6

A diver went 15 meters below the surface

of the water in 3 minutes. What integer

expresses the diver’s average change in

depth per minute?

To find the integer, n, divide: 
 15  3 n.

Division and multiplication are inverse

operations. You can use this relationship

to find the quotient of a division with integers.

Multiplication Division

 5  3  15 
  15  3  5

 5 
 3 
 15 
 
 15 
 3  5


 5 
 3  15 
  15 
 3 
 5


 5  3 
 15 
 
 15  3 
 5

 15  3 
5 or 
 15  3 
 5

The diver’s average change in depth

per minute is 
5 meters.

You can use rules for dividing integers.

To divide two integers, divide their absolute values.

• the quotient is positiveif the integers have like signs.
  () () (
  ) (
  ) 


• the quotient is negativeif the integers have unlike signs.
  () (
  )
  (
  ) () 
  


• the quotient is zero if the dividend is zero.

Study these examples.

 18  6  3



1

6

8

 3

Think

You cannot divide an

integer by zero.

0  6  0 
 6 0 is impossible.

0 
 6  0

 18  6 
 3





1

6

8


 3

2.3

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