Anzan Expert - Mental Calc
Contains ads
5K+
Downloads
Everyone
info
About this app
Ever find that "6 + 9" is easy, but "7 + 9" feels tricky?
Do you struggle with certain number combinations? I did! As the author of this app, I used to find combinations involving 8 or 9 particularly challenging. I also found it difficult to quickly calculate prices while shopping.
That's why I created this flash calculation app – to improve my own mental math skills! And while developing and testing it, I've already noticed a real improvement in my addition skills. I'm confident you'll see a boost in your own mental math abilities too!
I hope you have fun and enjoy your challenges!
HOW TO USE
Numbers flash on the screen at a set interval. Add them up in your head!
STAGES
There are 20 stages, each combining one of 5 different digit lengths (1 to 5 digits) with one of 4 flash intervals (6, 3, 1, and 0.5 seconds).
The most challenging stage is 5 digits with a 0.5-second interval – a true test of your skills! If you ever reach that level, you'll be a real "expert"!
Each stage has a unique name.
- 1 digit, 6-second interval: "Shell" stage
- 1 digit, 3-second interval: "Prawn" stage
- 1 digit, 1-second interval: "Turtle" stage
and so on...
EXPERT MEDALS AND LEVELS
Earn an expert medal for each stage by answering correctly 5 times in a row at that stage. Your current level is determined by the highest-level stage where you've earned a medal.
How far can you go? Find out now!
PRACTICE
Unlike the timed challenges, you can advance at your own pace by tapping the buttons. Easily switch between numbers, review previous values, and practice as much as you like until you feel confident and ready to ace the challenges!
REVIEW
After each challenge, review the numbers you just worked on. Practice the questions you missed until you can solve them correctly within the time limit.
OTHER USEFUL FEATURES
- Register multiple challengers to enjoy the app on a single device!
- Customize the look with multiple colorful themes - great for distinguishing each challenger!
- Share your success! Post your challenge results with a photo on social media.
Do you struggle with certain number combinations? I did! As the author of this app, I used to find combinations involving 8 or 9 particularly challenging. I also found it difficult to quickly calculate prices while shopping.
That's why I created this flash calculation app – to improve my own mental math skills! And while developing and testing it, I've already noticed a real improvement in my addition skills. I'm confident you'll see a boost in your own mental math abilities too!
I hope you have fun and enjoy your challenges!
HOW TO USE
Numbers flash on the screen at a set interval. Add them up in your head!
STAGES
There are 20 stages, each combining one of 5 different digit lengths (1 to 5 digits) with one of 4 flash intervals (6, 3, 1, and 0.5 seconds).
The most challenging stage is 5 digits with a 0.5-second interval – a true test of your skills! If you ever reach that level, you'll be a real "expert"!
Each stage has a unique name.
- 1 digit, 6-second interval: "Shell" stage
- 1 digit, 3-second interval: "Prawn" stage
- 1 digit, 1-second interval: "Turtle" stage
and so on...
EXPERT MEDALS AND LEVELS
Earn an expert medal for each stage by answering correctly 5 times in a row at that stage. Your current level is determined by the highest-level stage where you've earned a medal.
How far can you go? Find out now!
PRACTICE
Unlike the timed challenges, you can advance at your own pace by tapping the buttons. Easily switch between numbers, review previous values, and practice as much as you like until you feel confident and ready to ace the challenges!
REVIEW
After each challenge, review the numbers you just worked on. Practice the questions you missed until you can solve them correctly within the time limit.
OTHER USEFUL FEATURES
- Register multiple challengers to enjoy the app on a single device!
- Customize the look with multiple colorful themes - great for distinguishing each challenger!
- Share your success! Post your challenge results with a photo on social media.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted
What’s new
v4.1.0 / v4.1.1
New feature: Watch a video ad to disable post-challenge full-screen ads for 10 minutes!
We've also made the following changes:
- Now requires Android 10 or above.
- Tweaked UI and behavior.
- Updated icons with support for new formats.
- Overhauled English text throughout the app (including some level name translations).
- Fixed incorrect digit count in shared text.
- Addressed other minor bugs.
- Implemented internal improvements and updates.
New feature: Watch a video ad to disable post-challenge full-screen ads for 10 minutes!
We've also made the following changes:
- Now requires Android 10 or above.
- Tweaked UI and behavior.
- Updated icons with support for new formats.
- Overhauled English text throughout the app (including some level name translations).
- Fixed incorrect digit count in shared text.
- Addressed other minor bugs.
- Implemented internal improvements and updates.
App support
About the developer
MOSS
support@moss.tools
6-23-4, JINGUMAE
KUWANO BLDG. 2F.
SHIBUYA-KU, 東京都 150-0001
Japan
+81 90-6330-7146