Mental Arithmetic 1.81
With this program you can train your abilities mental calculations.You can select one or more mathematical operations, for test cases.Supported by addition, subtraction, multiplication and division.Also select a range of numbers that will be present in theexamples. Your task is to choose the correct answer from each bid.Each correct answer will add a few seconds to the time set asidefor reflection responses. Survive as long as possible in this stormmathematical !!!!.