000 00429nam a2200169 4500
003 OSt
008 220602b |||||||| |||| 00| 0 eng d
082 _a372.7
_bMOR
100 _aMorton
245 _aAn Illustrated Analysis of Making Sure of Arithmetic
260 _aNew York:
_bSilver Burdett Company,
300 _a47p.;
_bill.
_c21cm
650 0 _aArithmetic
700 _aGray
700 _aSpringstun
942 _2ddc
_cLM
999 _c140196
_d140196