00486nam a22001577a 4500008004100000020001800041082000800059100002200067245010900089260004000198300001800238440001700256650001700273700001800290700002000308150709b        xxu||||| |||| 00| 0 eng d  a9781846808869  a5101 aHaggis, Charlotte10aBrain academy maths challenges for brighter minds/cby Charlotte Haggis, Louise Moore and Richard Cooper  aLondon :bRising Stars Ltd.,c2011.  a47 p. :bill.20aRising stars  aMathematics 1 aMoore, Louise1 aCooper, Richard