Practical and Mental Arithmetic on a New Plan: In which Mental Arithmetic is Combined with the Use of the Slate : Containing a Complete System for All Practical Purposes Being in Dollar and Cents Carter, Hendee, & Company, 1828 - 268 σελίδες |
Practical and Mental Arithmetic on a New Plan: In which Mental Arithmetic is Combined with the Use of the Slate : Containing a Complete System for All Practical Purposes Being in Dollar and CentsCarter, Hendee, & Company, 1828 - 268 σελίδες |