00420nam a2200145 a 450000500170000000800410001704000240005810000160008224500560009826000380015430000140019265000150020665000310022170000220025220231107084741.0090401s19uu    xx            00    eng d  6HSLRCaHSLRCcHSLRC10aCutler, Ann10aThe Trachtenberg speed system of basic mathematics 0 aGarden City :bDoubleday,cc1960.  a270 pages  aArithmetic  aTrachtenberg, Jakow, 1888-  a Rudolph McShane.