Aperçu gratuit du livre Nelson's Common-School Arithmetic: Designed for the Use of the Lowest as Well as the Highest Classes, and Containing the Application of Arithmetic to the General Purposes of Life, and the Metric System of Weights and Measures, Recently Adopted by Congress
Nelson's Common-School Arithmetic: Designed for the Use of the Lowest as Well as the Highest Classes, and Containing the Application of Arithmetic to the General Purposes of Life, and the Metric System of Weights and Measures, Recently Adopted by Congress