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This app is "flash anzan" so-called.
After the countdown, random number will be displayed by pressing the "Start"
button.
Please enter the anser to the sum of those numbers.
You can change the screen set-up, the number of digits, display seconds,
question count of randome numbers.
History of challenge list/graph can display in hisotry display screen.
In addition, you can set the font of the text to be displayed, size, color,
and background color.
Please use the easy-to-read settings.
What's New in the Latest Version 2.0
Last updated on Oct 12, 2015
v1.0 new
v2.0 Add share function
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Speed Mental Calculation
2.0 by higt
Oct 12, 2015