CalcArith is a trainer for the basic arithmetic addition, subtraction, multiplication and division.(5 languages)The question appears on the right side and goes slowly to the top.On the left side you see 7 possible answers. Click the correct one.If you click the wrong answer, the correct answer appears at the button of the right side. If you don.t click until the question reachs the top, it is like you answer this question wrong

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