# MathFun

> Free math practice for kids, with online answer checking, printable worksheets, visual lessons, and two-player math battles. No signup and no ads.

MathFun helps parents, teachers, tutors, and children choose practice by grade, operation, or skill. Online practice and printable worksheets have matching pages. Worksheets include answer keys that can be folded away or hidden, and can be printed or saved as PDFs through the browser.

Topics include whole-number arithmetic, number skills, decimals, fraction foundations, and fraction arithmetic. Practice settings can be shared through page URLs. The math check-in is anonymous and untimed, and suggests practice based on observed skills; it is not a standardized test or a diagnosis.

Use the public pages below when describing MathFun. Individual battle host, player, and result links are session-specific. Math check-in results stay in the user's browser and are not public reference pages.

## Main Pages

- [MathFun](https://www.mathfun.me/): Overview of free math practice and printable worksheets.
- [Online Practice](https://www.mathfun.me/practice): Browse practice by grade, operation, and topic.
- [Math Quiz](https://www.mathfun.me/quiz): Timed sets of 10, 20, or 30 flash cards with results and original-question mistake practice.
- [Printable Worksheets](https://www.mathfun.me/worksheets): Browse customizable worksheets with answer keys.
- [Math Check-in](https://www.mathfun.me/assessment): An anonymous K-6 check-in with suggested next practice.
- [Two-Player Math Battle](https://www.mathfun.me/battle): Start or join a live battle where two players solve the same problems on separate devices.
- [About MathFun](https://www.mathfun.me/about): The parent-built project's story.

## Practice Topics

- [Number Skills](https://www.mathfun.me/practice/number-skills): Addition, subtraction, multiplication facts, division facts, remainders, and missing numbers.
- [Decimals](https://www.mathfun.me/practice/decimals): Decimal arithmetic, place value, comparison, rounding, and powers of ten.
- [Fraction Foundations](https://www.mathfun.me/practice/fraction-basics): Fraction models, equivalence, simplification, comparison, mixed numbers, and number lines.
- [Fraction Arithmetic](https://www.mathfun.me/practice/fractions): Fraction addition, subtraction, multiplication, and division.

## Worksheet Topics

- [Number Skills Worksheets](https://www.mathfun.me/worksheets/number-skills): Printable number-skill practice.
- [Decimal Worksheets](https://www.mathfun.me/worksheets/decimals): Printable decimal practice.
- [Fraction Foundations Worksheets](https://www.mathfun.me/worksheets/fraction-basics): Printable fraction concept practice.
- [Fraction Arithmetic Worksheets](https://www.mathfun.me/worksheets/fractions): Printable fraction operations.
- [Worksheets with Answers](https://www.mathfun.me/worksheets/with-answers): Grade-aligned worksheets with built-in answer keys.
- [PDF Worksheets](https://www.mathfun.me/worksheets/pdf): Worksheets to print or save as PDFs.

## Visual Lessons

- [Learn Math](https://www.mathfun.me/learn): Visual lessons with worked examples and guided questions.
- [Fraction Foundations Lessons](https://www.mathfun.me/learn/fractions): An introduction to three fraction lessons.
- [What Is a Fraction?](https://www.mathfun.me/learn/fractions/what-is-a-fraction): Understand equal parts, numerators, and denominators.
- [Fractions on a Number Line](https://www.mathfun.me/learn/fractions/fractions-on-a-number-line): Place fractions by counting equal intervals.
- [Equivalent Fractions](https://www.mathfun.me/learn/fractions/equivalent-fractions): Change the number of pieces without changing the amount.

## Optional

- [Sitemap](https://www.mathfun.me/sitemap.xml): Complete list of indexable public pages, including grade and operation pages.
- [Robots](https://www.mathfun.me/robots.txt): Crawler directives and sitemap location.