Cobb's Explanatory Arithmetick, Number One: Containing Mental, Theoretical, and Practical Exercises, in the Fundamental Rules of Arithmetick, Viz: Numeration, Addition, Substraction, Multiplication, and Division in Which the Principles of Each Rules Are F
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Cobb's Explanatory Arithmetick, Number One: Containing Mental, Theoretical, and Practical Exercises, in the Fundamental Rules of Arithmetick, Viz: Numeration, Addition, Substraction, Multiplication, and Division in Which the Principles of Each Rules Are F