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Arithmetic Operators

Part of the Fundamentals section of Coddy's JavaScript journey — lesson 12 of 77.

Operators are used to perform operations on values.

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

OperatorOperationExample
+Addition3 + 2 = 5
-Subtraction3 - 2 = 1
*Multiplication3 * 2 = 6
/Division4 / 2 = 2

Let's see a usage example,

let a = 3
let b = 5
let c = a + b // c holds 8
challenge icon

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:

OperatorOperationExample
+Addition3 + 2 = 5
-Subtraction3 - 2 = 1
*Multiplication3 * 2 = 6
/Division4 / 2 = 2

Example usage:

let a = 3
let b = 5
let c = a + b // c holds 8

Try it yourself

// Type your code below


// Don't change the line below
console.log(`a = ${a}, b = ${b}, c = ${c}`);
quiz iconTest yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Fundamentals