00655nam a2200205Ia 4500003000900000008004100009020001800050040001600068080001200084100002300096245008700119260003900206300001400245650002000259650002900279700002800308942000700336999001700343952008900360IN-BaIIA211028s9999    xx            000 0 eng d  a0-285-62916-6  cIIA Library  a51bCUL  aCutler, Ann935663 4aThe Trachtenberg speed system of basic mathematicscAnn Cutler and Rudolph McShane  aNew DelhibRupa Publicationsc2001  aix, 270p.  aMathematics982  aMental arithmetic935664  aMcShane, Rudolph935665  cBK  c18589d18589  00104070aBANbKODcGENd2013-04-29l0o51/ CULp19511r2021-11-05w2013-04-29yBK