WWork and play with numbersWork and play with numbersde George Wentworth · Publicada por primera vez en 1912MateriasArithmeticStudy and teachingEdiciones (1)Work and play with numbers (1912)Ginn and Company · inglésMás obras de George WentworthFFundamentals of practical mathematicsFundamentals of practical mathematics1922Essentials of Arithmetic1915Plane geometry
