Mathematical Expressions in C++

We can perform multiple calculations using operators in the same line of code:

cout << 3 - 4 + 6; // Prints 5
cout << 5 + 2 - 3; // Prints 4
cout << 2 * 5 + 1; // Prints 11
cout << 4 / 2 * 5; // Prints 10

We can also use variables:

int num1 = 5;
int num2 = -1;

cout << 2 * num1 * num2; // Prints -10
cout << num1 + num2 - 3; // Prints 1
cout << 20 / num1 + num2; // Prints 3
cout << num1 / 5 * num2; // Prints -1