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Kinderbücher über das Bruchrechnen

  • Basic Mathematics: Ratio, Rate and Proportional Division, with Averages and Mixtures (English Edition)

    Basic Mathematics: Ratio, Rate and Proportional Division, with Averages and Mixtures (English Edition)

  • How to Work with Fractions, Decimals & Percents, Grades 5-8: Grades 5-8 (Math How To...)

    How to Work with Fractions, Decimals & Percents, Grades 5-8: Grades 5-8 (Math How To...)