Mental arithmetic: combining a complete system of rapid computations with correct logic of the solutions of problems and the analyses of processes

Mental arithmetic: combining a complete system of rapid computations with correct logic of the solutions of problems and the analyses of processes

John H. 1824-1888 French

     

бумажная книга



ISBN: 978-5-8759-1807-0

Воспроизведено в оригинальной авторской орфографии.

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