000 00503nam a2200169 a 4500
008 140520s9999||||xx |||||||||||||| ||und||
020 _a0873533194
082 _a510.7
_bNCTM
100 _aBurton, Grace
245 _aNumber Sense And Operations
260 _aVirginia
_bNational Council Of Teachers Of Mathematics
_c1995
300 _aviii; 56p.
_b8.5x11
_cpb
440 _aCurriculum And Evaluation Standards
546 _aENG
650 _aMathematics-Study and teaching (Elementary)
942 _cBK
999 _c65237
_d65237