About Mental Math

Mental Math is a free educational website that teaches mental arithmetic through a clear, progressive curriculum. We built it for children and early teens, and for the parents and teachers who support them — anywhere in the world where English-language learning resources are helpful.

Our mission

We believe number confidence should not depend on expensive apps or locked content. Mental Math offers original explanations, worked examples, interactive drills, and lightweight games with no account wall. Every stage and guide is written to teach a strategy a learner can explain out loud, not just a score they can chase.

Thin, repetitive pages do not help families — and they do not meet the quality bar we set for ourselves. That is why our curriculum pairs short practice tools with long-form guides on topics such as what mental math is, beginner exercises, and everyday life applications.

How the curriculum works

Built around progressive, one-skill-at-a-time scaffolding, each of our 20 stages focuses on one technique at a time. Learners move from number sense and making tens toward two-digit addition, multiplication patterns, percentages, and multi-step estimation. They can also explore four free games that reinforce the same skills, plus the long-form pillar at /mental-math/.

Who this site is for

• Parents looking for a free, structured path without a subscription
• Teachers who want clear examples to model in class or assign for short homework
• Older beginners who need a respectful restart from foundations, not babyish filler

Who runs the site

Mental Math is published by an independent education-focused editorial team. We create original instructional content, maintain the practice tools, and keep legal pages transparent for families and advertising partners. Feedback from real practice sessions shapes how we revise examples and game rules.

Advertising & trust

To keep the site free, we may display interest-based or contextual ads (for example via Google AdSense) after approval. Ads never change lesson answers or curriculum order. Details are in our Privacy Policy and Terms of Service.

Contact

Questions or feedback? Visit the contact page or email hello@plryo.com.