000 00610nam a2200217 a 4500
001 2179
005 20140414132004.0
008 010329s19uu xx 00 eng d
020 _a0-590-30172-1
050 _aTR 372.7
_bC652 1980
100 _aStudebaker, Gordon
245 _aAdd or subtract :
_cby Gordon Studebaker and John W. Studebaker.
_bcomputational skills C /
250 _aTeacher's Ed
260 _aNew York :
_bScholastic,
_c1980.
300 _a32 p. ; cm.
440 _aA Scholastic Skills Book
650 _aMathematics.
650 _aSubtraction.
650 _aAdd.
999 _c113132
_d113132