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Operation


4.2 ( 9232 ratings )
Образование
Разработчик David Chiu
бесплатно

This app can be used to practice calculating skills, particularly in multiplication, addition, and subtraction. There is no included timer, however a counter keeps track of correct answers. Users can switch between two different modes: multiplying or adding and subtracting. In the multiplication mode, users are given random exercises going up to 99 x 12. Within the addition and subtraction mode, users are successively given a number to add or subtract from the previous answer. For either mode, a button can show the answer and allow the user to pass onto a new question.