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101 0 ^aeng
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200 1 ^a<50=    50> pre-algebra activities^fMary Lou Witherspoon and Ernest Woodward
210   ^aPortland^cJ. Weston Walch^dcop. 1998
215   ^a121 p.
606   ^aAlgebra^2ESEC
606   ^aEnsino da Matemática^2ESEC
606   ^aAtividades de Aprendizagem^2ESEC
606   ^aFichas de Trabalho^2ESEC
675   ^a51^vBN^zpor
700  1^aWitherspoon,^bMary Lou
701  1^aWoodward,^bErnest^4070
801  1^aPT^bESEC^gRPC
856 4 ^uhttp://books.google.com/books?id=nb7w0mSoRd0C&printsec=frontcover&dq=50+pre-algebra+activities&hl=pt-PT&ei=3zneTsv_PMnotQa2qc3zCA&sa=X&oi=book_result&ct=result&resnum=1&ved=0CDEQ6AEwAA#v=onepage&q&f=false^zGoogle books
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