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Greetings, on this occasion we present the topic of Simple Rule of Three that will be useful both to high school students and those who begin their university preparation. We are explaining the complete theory and different ways of how to approach a problem. Direct Simple Rule of Three. Inverse Simple Rule of Three. Partial works. Observations. #arithmetic #schools #academies #Istayathome #Istudyathome FACEBOOK: / pro.haiku.pe INSTAGRAM: / proyecto.haiku