Arithmetic Operators

Part of the Fundamentals section of Coddy's C++ journey — lesson 16 of 74.

Operators are used to perform operations on values.

First we will discuss the most basic arithmetic operators, they may be familiar from math classes.

Operator	Operation	Example
+	Addition	3 + 2 = 5
-	Subtraction	3 - 2 = 1
*	Multiplication	3 * 2 = 6
/	Division	4 / 2 = 2

Let's see usage example,

int a = 3;
int b = 5;
int c = a + b; // c holds 8

When working with decimal numbers in C++, we use the double data type, which can store numbers with decimal points. The same arithmetic operators (+, -, *, /) work with doubles just like they do with integers:

double x = 3.3;
double y = 4.1;
double z = x + y; // z holds 7.4

Challenge

Beginner

Write a code that initializes two variables, a and b, with the values 5.2 and 2.6 (respectively).

After that, initialize another variable c that will hold the result of a / b.

Cheat sheet

Arithmetic operators perform mathematical operations on values:

Operator	Operation	Example
+	Addition	3 + 2 = 5
-	Subtraction	3 - 2 = 1
*	Multiplication	3 * 2 = 6
/	Division	4 / 2 = 2

Using arithmetic operators with integers:

int a = 3;
int b = 5;
int c = a + b; // c holds 8

Using arithmetic operators with decimal numbers (doubles):

double x = 3.3;
double y = 4.1;
double z = x + y; // z holds 7.4

Try it yourself

#include <iostream>

int main() {
    // Type your code below
    
    
    // Don't change the line below
    std::cout << "a = " << a << ", b = " << b << ", c = " << c;
    return 0;
}