00323nam a2200121 a 450000500170000000800410001702000180005805000280007624500340010426000380013830000100017644000150018620140412111329.0110128s19uu    xx            00    eng d  a0-395-98302-9  aTR(GS 372.7bTe249 2000  aTeacher Resource Copymasters.  aU.S.A :bHoughton mifflin,c2000.  a255p.  aMath steps