The relative merits of three methods of subtraction : an experimental comparison of the decomposition method of subtraction with the equal additions method and the Austrian method. 1st AMS ed.
The relative merits of three methods of subtraction : an experimental comparison of the decomposition method of subtraction with the equal additions method and the Austrian method.
Reprint of the 1938 ed., issued in series: Teachers College, Columbia University. Contributions to education, no. 738.Originally presented as the auth...