Conquer 99 levels! A quick calculation training game played by using a calculator is finally on the store.
Solve addition, subtraction, and more complicated operations using memory functions. Can you complete all the stages and be a calculation master?

Solve problems one after another using 3 different calculators!
Compete against time or use assist items when you are having a tough time. It offers you not only calculation training but also challenging gameplay!

MASTER USING A CALCULATOR:
Can you quickly solve the following problem by using a calculator: (129 + 94) x (65 - 39)?
Do you know how to use keys such as [M+] and [M-] on a calculator?

In everyday life, we use a calculator but most of us do not make full use of it.
Playing this app will improve your calculation skills and you will be able to solve complex calculations at once!

EXAM MODE:
You'll pass the exam if you finish the game within the time limit or exceed the qualifying score.
There are 99 levels and the further you go the more difficult the problems will be. Pass all the stages!
Stuck? Use an assist item and secure your victory!

SCORE CHALLENGE MODE:
Score as high as possible without making any mistakes!

TIME TRIAL MODE:
Compete with the clock to get the fastest time to win the game. Break the world record!

TRAINING MODE:
It offers intensive trainings such as "addition", "abacus", and "calculation with memory function".

FOR 5-99 YEARS OLD:
• Detailed instructions on how to use the memory functions are included. So no worries if you don't know the operation at all.
• It also contains a simple calculator for kids that is suitable for the elementary school level calculation such as typing numbers, addition, or subtraction.

ABOUT ADS & ADD-ON:
• The free version contains ads (purchasing an add-on removes the ads).
• You can play the entire app for free, but purchasing medals give you an advantage for finishing the game. You will also obtain medals by satisfying a certain condition within the game.
• Please keep in mind that all the medals are lost when the app was deleted from your device. Moreover, medals cannot be transferred to other users or cannot be transferred to other devices.

PRIVACY POLICY:
This app includes;
• advertisement
• add-ons (In-App Purchases)
• a function to post on the SNSs
* No automatic post without operation.
• links to Keaton.com apps and the official site
• score data collection for displaying rankings
* By signing in the Game Center, play data such as the score will be automatically sent to the server and your account name and score will be shown on the leaderboard.