Wednesday, 30 May 2012

Subtracting Integers

In the previous section we have discussed about adding scientific notation calculator and In today's session we are going to discuss about Subtracting Integers.
We know that the subtraction operation is to be performed when something is to be reduced from the given unit. Now we will learn how to perform the operation of subtraction. Here we will learn it by the help of the following expression:
Subtract -5 from -7
 In this expression, we observe that both the terms are negative. So the given expression can be mathematically expressed as follows:
 = -7 – ( -5 ), so we come to the conclusion that the sign of the second term will be changed when we perform subtraction. So we get “
 = -7 + 5
= -2, here the sign of the second term becomes positive and thus we get the result by performing the addition operation between the two terms as -2.  When we need to learn about Quotient Rule, we must go through the cbse textbooks for class 11 and understand the basic concepts for the same. Now we will find that we perform the subtraction operation between the terms such the subtrahend is a negative number and the minuend is a positive number, then we proceed as follows:
 Subtract -4 from + 6, so this expression will be written as follows:
 = 6 – ( -4 ), so we write that the  sign of the negative number -4 will change to  + 4 and the expression will be written as follows :
= 6 + 4 = + 10
Thus we find the two terms will be added up and we get the result as  + 10, which is the difference of the  two numbers  where the  subtrahend is a negative number and the minuend is a positive number.

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