Mathe-Wettbewerb Vorbereitung, Problemlösungsstrategien und Mathe-IQ-Rätsel: Für
59,92 €
Further, puzzles can increase a child's IQ. How to train a child to think "out of the box" and be creative?. The integrated chess, Sudoku, and math computational puzzled can help. How did I get started to create this workbook?.
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