诡异的数字 app for iPhone and iPad

1 + 1 = 2,
2 + 3 = 5
4 + 5 = 9? ? ?

Seemingly simple digital subtraction method, can you answer it in a short time?

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So simple, just click right or wrong can be.

But each question only two seconds of reaction time, wrong answer or did not answer are deemed to fail

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So freaky

Looking within the stipulated time how many questions you can answer, though wrong, the answer can continue, but there is time to punish ~

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So easy, so freaky and so fun!

Maybe this will be the interesting game you ever seen.