Monday, September 1, 2014

Division of Integers


In this lesson, we will learn how to divide integers. Remember the following key points for division of integers:

Key Points:
  • Integers are distributed in 2 categories: positives and negatives
  • Integers are whole numbers
  • Zero is neither a positive or negative number
  • If the signs are the same the quotient will be positive
  • If the signs are different the quotient will be negative 
 Figure 1 Division of Integers Number Line

Division of Integers

Let's say that we have the following problem:

(-100) / (-25)
From the above key points, we know that if the signs are the same the quotient will be a positive number.
In this case we have two negative numbers so we will have a positive result.

Since the sign has been determined, we can now do simple division:

100/25 is 4 because 4 x 25 = 100

That means the quotient is +4.

(-100) / (-25) = +4

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