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Robinson's Progressive Practical Arithmetic Containing The Theory Of Numbers In Connection With Concise Analytic And Synthetic Methods Of Solution, And Designed As A Complete Text-Book On This Science ... »
Robinson's Progressive Intellectual Arithmetic On The Inductive Plan. Being A Sequel To The Progressive Primary Arithmetic ... And Designed For The More Advanced Classes In Common Schools And Academies, B... »
Robinson's Progressive Practical Arithmetic Containing The Theory Of Numbers, In Connection With Concise Analytic And Synthetic Methods Of Solution, And Designed As A Complete Text-Book On This Science... »