Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Flash mental calculation 螢幕截圖

iPad

iPhone

About Flash mental calculation

This app that you can practice flash mental arithmetic.
You can review the calculation process by tapping the confirmation button after calculation.
In addition, since the question which was made is saved in the past log, you can rechallenge the mistaken problem later.
The past logs are saved for 10 questions before purchase, and 150 questions can be saved after purchase.

■ Past log
Challenge mode, practice mode questions and results are automatically saved.
Touch the challenge button to re-challenge the question.
The past logs are saved for 10 questions before purchase and 150 questions are stored after purchase.