The First Steps in Number: A Primary Arithmeticde George Albert Wentworth, E. M. ReedMateriasArithmeticProblems, exercisesEdiciones (1)The First Steps in Number: A Primary Arithmetic (1892)Ginn · inglésMás obras de George Albert WentworthElements of Plane and Solid Geometry1882The First Steps in Algebra: By G.A. Wentworth1903Answers to the Problems in Wentworth's College Algebra1889