Mental Math APK

Mental Math

Sharpen Your Arithmetic Skills

• Mental Math is a straightforward, distraction‑free Android app designed to help you get better at solving math problems in your head.

• Whether you prefer solo practice or friendly competition, this open‑source tool puts your privacy first while keeping the focus entirely on your skills.

Tailored Training

Take control of your practice sessions by setting exactly what you want to work on:

• Choose from addition, subtraction, multiplication, and division.

• Select from nine difficulty levels for each operation, so your training matches your ability perfectly.

Two Fun Ways to Play

• Task Mode — Solve a fixed number of problems (10, 20, 30, 40, or 50).

• Timed Mode — Race against the clock and solve as many problems as you can in 1 to 5 minutes.

Friendly Challenges

Invite friends to compete in two different ways:

• Share a finished game so they can tackle the exact same problems and compare scores.

• Send a link to start a brand‑new match with preset rules for a fair head‑to‑head challenge.

Smart Difficulty System

• Problems are generated using algorithms inspired by real‑world methods like column addition, column subtraction, long multiplication, and long division — ensuring exercises feel authentic and balanced.

Detailed Feedback

After every session, you’ll see a full breakdown of your performance:

• Accuracy, speed, and overall score.

• All the problems you solved, along with your answers.

• The settings you chose for that game.

Track Your Progress

• Personal leaderboard showing your top 10 scores for each unique set of settings.

• Access detailed summaries of your best performances anytime.

• Browse your complete game history, sorted by date or score, and revisit past results whenever you like.

Minimalist Design

A clean, uncluttered interface keeps your attention on the math — no distractions.

• Available in both light and dark modes.

• No unnecessary visuals, just you and the numbers.

• Private and Open Source

Mental Math is:

• 100% open source and free.

• Completely offline — no internet needed.

• Ad‑free, permission‑free, and personal‑data‑free.

FAQ

Q: How do I tailor my training sessions to my skill level?

A: When you start a session, you decide which arithmetic operation to practice and choose one of nine difficulty levels for that operation. This means you can begin with simple single-digit sums or challenge yourself with complex multi-digit problems. Adjusting difficulty ensures each session matches your current ability so you’re neither bored nor overwhelmed.

Q: What’s the difference between Task Mode and Timed Mode?

A: Task Mode lets you pick a specific number of problems—anywhere from ten to fifty—and work through them at your own pace. Timed Mode, on the other hand, sets a countdown between one and five minutes, and challenges you to solve as many problems as possible before the clock runs out. Task Mode offers steady practice, while Timed Mode pushes your speed and endurance under pressure.

Q: How can I challenge my friends?

A: You can share a completed game with friends so they tackle the exact same problems and compare how you both performed. Alternatively, you can send a challenge link that presets the rules for a brand-new head-to-head match. Either way, the app handles the problem generation and scoring so every match stays fair and fun.

Version History

v19——20 Jan 2026

Practice mental math solo or with friends - open source, ad-free and private. Download the latest version of Mental Math to enjoy new features and updates immediately!

*19

- improved behavior of the task overview in cases where the task and input are too long for the line

- dependency updates

- minor code improvements

*18

- new option for right-to-left input of numbers