FLASH Calculation

Mental arithmetic app is FLASH.
More iOS6: operating environment
The mental arithmetic the numbers displayed on the screen one after the other, right at the end, to determine an incorrect answer.
※ There is no official app of the Japan Association of flash mental calculation.
■ AppStore
http://itunes.apple.com/jp/app/flash-calculation/id500486995?ls=1&mt=8

You can set up the following topics I am available.
• The number of digits (digits 1-7)
• Speed ​​(in seconds 4.0,3.5,3.0,2.5,2.0,1.5,1.0,0.7,0.5,0.3, 0.2, 0.1)
• The number of questions (questions 5,10,20,30,50,100)

You can post the results on Twitter.
Let's train the brain and brain training in mental arithmetic FLASH!