Mathematics Teacher (1931) Vol. 24, No. 1

  • Mathematics Teacher (1931) Vol. 24, No. 1

    I I THE MATHEMATICS TEACHER The Official Journal of The National Council of Teachers of Mathematic. Incorporated 1928 JANUARY 1 9 3 1 Contents )) I The Efficiency of Decomposition Compared with That of Equal Additiion as a Technique in Subtraction of Whole Numbers ......... . . . . . . . . . . . . . . . . . . . . . .