**C++ program for addition, subtraction, multiplication and division** has been shown here. These are the basic arithmetic operations.

## 1. C++ Program & output to Perform Addition, Subtraction, Multiplication & Division

Code has been copied

/***************************************************************** alphabetacoder.com C++ program for addition, subtraction, multiplication and division *****************************************************************/ #include<iostream> using namespace std; int main(){ // declare variables double a, b, w, x, y, z; // take input cout<<"Enter first number: "; cin >> a; cout<<"Enter second number: "; cin >> b; // compute operations w = a + b; x = a - b; y = a * b; z = a / b; // display result cout<<"Addition: "<<w<<endl; cout<<"Subtraction: "<<x<<endl; cout<<"Multiplication: "<<y<<endl; cout<<"Division: "<<z<<endl; return 0; }

Output

Enter first number: 15

Enter second number: 2.5

Addition: 17.5

Subtraction: 12.5

Multiplication: 37.5

Division: 6

## 2. C++ Program & output to Perform Addition, Subtraction, Multiplication & Division using pointers

Code has been copied

/***************************************************************************** alphabetacoder.com C++ program for addition, subtraction, multiplication and division using pointers *******************************************************************************/ #include<iostream> using namespace std; int main(){ // declare variables double a, b, w, x, y, z, *n1, *n2; // take input cout<<"Enter first number: "; cin >> a; cout<<"Enter second number: "; cin >> b; //store the address in pointer n1 = &a; n2 = &b; // compute operations w = *n1 + *n2; x = *n1 - *n2; y = *n1 * *n2; z = *n1 / *n2; // display result cout<<"Addition: "<<w<<endl; cout<<"Subtraction: "<<x<<endl; cout<<"Multiplication: "<<y<<endl; cout<<"Division: "<<z<<endl; return 0; }

Output

Enter first number: 15

Enter second number: 2.5

Addition: 17.5

Subtraction: 12.5

Multiplication: 37.5

Division: 6

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