The number combinations, their relative difficulty and the frequency of their appearance in text-books,

में बचाया:
ग्रंथसूची विवरण
OCLC:4285002
मुख्य लेखक: Clapp, Frank L. (Frank Leslie), b. 1877
अन्य लेखक: Huebner, Bernard P.
भाषा:English
प्रकाशित: Madison, Wis. [1924]
श्रृंखला:University of Wisconsin. Bureau of Educational Research. Bulletin no. 2. July 1924.
विषय:
Arithmetic > Study and teaching.
Educational psychology.
स्वरूप:

Monograph

Note that CRL will digitize material from the collection when copyright allows.

विवरण
भौतिक वर्णन:120 p. diagrs. 23 cm.
ग्रन्थसूची:Bibliography: p. 118-120.

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