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With the application R3 may calculate a simple rule of three ( cross multiply )quickly and easily.

Unlike other applications, three rules to calculate direct and indirect way , and also you can use decimals.

It is a free app, permissions are for advertising .

Do not miss the opportunity to perform mathematical operations conveniently and easily.

tags: math, education, rule of three, rule of three

R3-Rule of 3.Cross multiply

Poslednja verzija aplikacije R3-Rule of 3.Cross multiply