## 3.1.Arithmetic Operators

What is an arithmetic operator?

An arithmetic operator is an calculate operator like: Add, Subtract, Multiply, Divide, Modulus, and Increase of Decrease operator.

There are following arithmetic operators supported by C++ language

Example 1: Declaration variable for follow operator bellow

int A=10, B=20;

 Operator Description Example + Adds two operands A + B will give 30 – Subtracts second operand from the first A – B will give -10 * Multiplies both operands A * B will give 200 / Divides numerator by de-numerator B / A will give 2 % Modulus Operator and remainder of after an integer division B % A will give 0 ++ Increment operator, increases integer value by one A++ will give 11 — Decrement operator, decreases integer value by one A– will give 9

Example 2: Using variable with operator and display the result

``` #include<iostream.h>
#include<conio.h>
void main()
{
int a=10,b=20,result;
result=a+b;
cout<<"Result 1: " <<result<<endl;
result=a-b;
cout<<"Result 2: " <<result<<endl;
result=a*b;
cout<<"Result 3: " <<result<<endl;
result=a/b;
cout<<"Result 4: " <<result<<endl;
result=a%b;
cout<<"Result 5: " <<result<<endl;
result=a++;
cout<<"Result 6: " <<result<<endl;
result=b--;
cout<<"Result 7: " <<result<<endl;
getch();
}

```
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