00414nam a2200145 a 450000500170000000800410001702000180005805000270007610000180010324500710012126000400019230000100023244000100024265000160025220140412111242.0010904s19uu    xx            00    eng d  a1-85758-366-3  aTR(GS 372.7bR685 1996  aRodda, George  aBack to basics, bk. 2 :cGeorge Rodda.bmaths, for 8-9 year olds /  aLondon :bLetts Educational,c1998.  a32 p.  aLetts  aMathematics