Arithmetic Operators

Part of the Fundamentals section of Coddy's GDScript journey. Lesson 15 of 92.

Operators perform operations on values. The arithmetic operators do math:

+ addition: 3 + 2 is 5
- subtraction: 3 - 2 is 1
* multiplication: 3 * 2 is 6
/ division: 4 / 2 is 2
** power: 2 ** 3 is 8 (2 * 2 * 2)

Operators work with values and with variables. You can store the result in a new variable:

var a := 3
var b := 5
var c := a + b # c holds 8

As in math, *, / and ** run before + and -. Parentheses change the order:

print(3 + 2 * 4) # 11
print((3 + 2) * 4) # 20

When one of the values is a float, the result is a float too:

var price := 2.5
print(price * 3) # 7.5

Challenge

Easy

Declare three variables:

a with the value 5.2
b with the value 2.6
c that holds the result of a / b

Write your declarations above the comment. The print() line is already there and outputs:

a = 5.2, b = 2.6, c = 2.0

Try it yourself

extends Node

func _ready():
	# Declare a, b and c below

	# Don't change the line below
	print("a = ", a, ", b = ", b, ", c = ", c)

Test yourself

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

All lessons in Fundamentals

1Introduction

The Language Hello World!Comments Basic Program Structure

4Operators Part 1

Arithmetic OperatorsInteger Division Modulo Operator Arithmetic Shortcuts Recap - Simple Math Comparison Operators

7Basic IO

Output Output With Variables String Formatting Input Cast Recap - Till 120 Recap - True or False

10Functions

Declare a Function Arguments Return Return Types Recap - Sigma Function Recap - Validation Function Default Values

13Iterating Over Arrays

Iterating Over Elements Iterating With Indexes Iterating Over Strings Part 1 Iterating Over Strings Part 2

16Daily Expense Tracker

Project Overview Exit The Program

2Variables Part 1

Numbers String Boolean Empty Variables Naming Conventions

5Operators Part 2

Logical Operators Part 1 Logical Operators Part 2 Recap - Simple Logic Logical Operators Part 3 Ternary Operator

8Bill Split Calculator

Welcome Message Getting Input

Calculating The Tip And Total

Splitting The Bill

Formatted Output

11FizzBuzz with a Twist

Game Overview The FizzBuzz Function

Looping The Numbers

Adding The Twist

14Arrays Advanced

Array Slicing Sequence Operators Membership Sort And Reverse

17Final Challenges

Flat Asterisk Pyramid Pattern Finder What To Buy

Practice on your own: Online GDScript compiler