Mental Math Free

Solid but pretty dull multiplication practice with a few tricks

Learning rating

Community rating

Based on 2 reviews

Privacy rating

Expert evaluation by Common Sense



Subjects & Skills

Character & SEL, Critical Thinking, Math

Price: Free
Platforms: Android

Pros: Kids will benefit from quick-hit sessions and repetitive practice.

Cons: Some kids may find such a plain user interface dull.

Bottom Line: Offers solid math practice, but the plain user interface just doesn't encourage engagement.

For classroom use, Mental Math Free is a good idea for kids who need to speed up math calculation. If learned and practiced, the nine mental math techniques –- subtraction, multiplication of various sets, square roots, some algebra-related mental math tricks, factorization, and division –- can help kids calculate math problems more quickly. Mental Math Free is also good for helping kids brush up on their multiplication tables or challenging them to learn tables for higher numbers. A downside of the app is that there are no individual profiles for students to track their progress.

Mental Math Free is a simple mental math practice and trick-teaching app to help middle and high school students solve math problems more quickly. Younger kids can practice their multiplication tables, while older kids can use the techniques list to learn nine mental math tricks. Training questions and the app's game, “Flash Calc,” help kids practice their skills.

First, tap an option: Times Tables, Techniques, Training, or “Flash Calc.” For Times Tables, set the practice range (for example, to practice times tables 2 through 15, set the left number at 2, then set the range 1 ~ 15 with the next two numbers). Then tap Start to begin solving problems by entering the answers in a number keypad. Tap Techniques to see a list of mental math tricks; tap on one item to view its instructions. Training is practice of the techniques. “Flash Calc” is a quick calculation game where players see 3, 5, 10, or 15 numbers (positive or negative) in a row and must enter the correct total at the end.



Kids learn by drilling themselves on Mental Math Free's multiplication tables and by reading and memorizing the techniques, practicing them during Training, and testing themselves in the “Flash Calc” game. The Training portion doesn't allow an incorrect answer to a question. Rather, the screen just remains static until a kid enters another answer. The app provides good information and solid practice for middle and early high school math students, but it's nothing special.

Note: ads run along the bottom of this app; the developer states that tapping an ad will make the ads disappear for 24 hours.

Learning Rating

Overall Rating

The multiplication tables are repetitive practice, and the mental math techniques are simple written instructions plus practice. "Flash Calc" is the most engaging part, with quick gameplay and encouraging feedback.


Explanation, memorization, drills, practice, and gameplay promote reasonably deep learning. There's nothing particularly innovative about the approach, but positive feedback helps kids stick with it.


There are many settings, so kids can customize the multiplication tables, training, and gameplay. Kids are supported with encouraging, insightful quotes during the game, and basic feedback is provided.

Common Sense reviewer

Community Rating

Mental Math !

This is great for a review! I would be able to teach the lesson and then have them practice on here. I like that it is fast feedback and they know right away what they did wrong and how to fix it. Mental math is important so i like how this works on that, it will challenge the kids.

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Privacy Rating

Data Safety How safe is this product?

  • Unclear whether this product supports interactions between trusted users.
  • Unclear whether personal information can be displayed publicly.
  • Unclear whether user-created content is filtered for personal information before being made publicly visible.

Data Rights What rights do I have to the data?

  • Users can create or upload content.
  • Processes to access or review user data are available.
  • Processes to modify data are available for authorized users.

Ads & Tracking Are there advertisements or tracking?

  • Unclear whether personal information are shared for third-party marketing.
  • Traditional or contextual advertisements are displayed.
  • Personalised advertising is displayed.

Continue reading about this tool's privacy practices, including data collection, sharing, and security.

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