PRIVACY / ACCESS: HavocRock Study is free to use and contains no advertising or analytics/tracking code. The pages contain no accounts, advertising, analytics or tracking code and do not intentionally collect or store personal data. Some lessons may save non-personal learning progress locally in your browser only; that progress is not sent to the site.
UNDER DEVELOPMENT: This website is still being built and refined. Great care has been taken to keep the pages smooth and error-free, but occasional issues may still occur. We are continually testing, fixing and improving the site so it becomes as reliable and smoothly functioning as possible, as quickly as possible.
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HOME⌂FractionsDecimalsOperations on SetsPercentageSquare RootsCube RootsHTML
HAVOCROCK.STUDY • CLASS 8

Maths,
decoded.

Interactive Class 8 maths labs built to make difficult ideas easier to see, test and remember. Each topic has its own visual lesson, practice tools, flashcards and checks.

OPEN THE LABS START WITH DECIMALS
QUICK TOOL Pick a calculator from the deck in the corner.
SYSTEM STATUS

Six interactive modules online.

All topic pages are standalone HTML files, so they can live directly on ordinary shared hosting.

06TOPIC LABS
06QUICK CALCULATORS
0AD TRACKERS
100%FREE TO USE
01 // MATH LABS

Choose a topic.

Each box takes you to the corresponding final lesson page. The calculator deck stays available while you browse the homepage.

MODULE 01 // FRACTION

Fractions

Build a visual understanding of fractions and work through their core operations without relying on memorised steps alone.

Basics • Types • Operations • Practice • Flashcards
OPEN FRACTIONS →
MODULE 02 // DECIMAL

Decimals

Explore place value, conversion, comparison, rounding, powers of ten and decimal operations through interactive tools.

Place Value • Conversion • Rounding • Operations • Practice
OPEN DECIMALS →
MODULE 03 // SETS

Operations on Sets

Work with union, intersection, difference, complements, set relationships and cardinal-number formulas.

Union • Intersection • Difference • Complement • Cardinality
OPEN SETS →
MODULE 04 // PERCENT

Percentage & Applications

Connect percentages with fractions and decimals, then apply them to discounts, profit, tax and simple interest.

Conversions • Change • Finance • Word Problems • Practice
OPEN PERCENTAGES →
MODULE 05 // ROOT²

Square Roots

Study perfect squares, square-root patterns, estimation and problem-solving with interactive square-root tools.

Perfect Squares • Roots • Estimation • Problems • System Check
OPEN SQUARE ROOTS →
MODULE 06 // ROOT³

Cube Roots

Discover perfect cubes, cube roots, patterns and applications, with interactive practice and challenge sections.

Perfect Cubes • Roots • Estimation • Problems • System Check
OPEN CUBE ROOTS →
02 // ABOUT THE PROJECT

Built as a study tool.

The current site is a collection of lightweight, standalone educational pages intended for Class 8 learners.

Simple hosting

The project is made from ordinary HTML, CSS and JavaScript files. No database or special application server is required for these pages.

Privacy by design

There are no account forms, ad scripts or analytics libraries in this homepage. Topic pages may use browser-local storage for learning progress only.