Flash Mental Arithmetic free

※ This document has been translated using Google.This app is a simple mental arithmetic flash.You will calculate the number displayed on the screen.The following settings are enabled.①出題数※Number of digits to be displayed.②数字桁数※Number of digits.③出題表示間隔※Time the problem appears.④引き算※Your inclusion or subtraction problem.⑤カンマ※You whether or not to display a comma.⑥桁合わせ※Whether you match the digits.⑦効果音※Whether you play a sound effect.

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