PProblem solving and investigationsProblem solving and investigationsde David G. WellsMateriasProblem solvingStudy and teaching (Secondary)Ediciones (2)Problem solving and investigations. (1987)Rain Publications · inglésProblem solving and investigations (1986)Rain · inglésMás obras de David G. WellsCan you solve these?MMathematics through problem solvingMathematics through problem solvingTThe Penguin dictionary of curious and interesting numbersThe Penguin dictionary of curious and interesting numbers
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