Addition and Subtraction
Mathematics is the important and essential education for everyone. If you want to be good in Mathematics then it is mandatory for you to be best in Addition and Subtraction.
What is Addition and Subtraction?
Addition and Subtraction are two airthmatic process which are being used since thousands of decades. Addition is a process of combining two or more numbers. Subtraction is the process of isolating two or more numbers.
Let us first Understand the concept of Addition.
Assume that you have two balls in your hand.
I gave you one more ball.
Your total Number of ball = 3
How you got 3 ball?
You just added your two ball with my one ball.
We can represent this as: 2 ball + 1 ball = 3 ball
As you can see we used (+) sign for the addition of two number and (=) sign for the result.
Now lets do some addition practice
8 + 6 = 14
18 + 8 = 26
296 + 104 = 400
6331 + 965 = 7296
Now you should Do the following addition and answer in the comment section below.
Q.1 535 + 366 = ?
Q.2 9316 + 31677 = ?
Q.3 942233 + 632101 = ?
I hope the concept of addition is understandable for you. Now quickly learn the concept of Subtraction
Assume you have 3 balls in your and and you given me a ball.
Remaining balls in your hand = 3 – 1 = 2
Here you got the result by subracting 1 from 3.
Subtraction is represented with the symbol (-)
Addition and Subtraction of Negative Numbers
Negative number addition and Subtraction creates confusion and doubts. Still the negative number addition and Subtraction procedure are same as the above. But the rule is different.
Two Negative Numbers
If the question asks you to add two negative numbers then you have to add both the number and then put the negative sign before the answer.
As the two given numbers are negative then add both the numbr which is = (-6) + (-4) = -10
-10 + (-65) = -75
Negative and Positive Numbers
Addition of one negative and one positive number is nothing but subtraction of smaller number from bigger number and put the sign as per the sign of the biger number.
-15 + 17 = 2
-166 + 62 = -94
Addition and Subtraction of Decimal Numbers
You might be thinking the addition and Subtraction of Decimal numbers are little bit difficult than Natural Number. But its not so difficult. Addition and Subtraction procedure of decimal numbers are same as the procedure of Natural Numbers.
Let us add two number 10.3 with 6.7
Step-1: First write second number below first number.
Step-2: Now add all the numbers after the decimal point then followed by the number before decimal point.
If you get any carry then add it to the next left number.
For the subtraction purpose you need follow the simple subtraction process and if you need any borrow then take it from your left hand side number