9787806640708 - I Count Relaxed and Happy Quick Calculation Every Day to Practice Mental Arithmetic Thin: 6 Year (vol.2) (who Teach Standard Version)(chinese Edition) by Lai Lin Xiang Bian (1 results)
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paperback. Condition: New. Paperback. Pub Date :2009-02-01 Pages: 90 Language: Chinese Publisher: Changchun Publishing House. relaxed and happy I count quick calculation every day to practice mental arithmetic thin: Grade 6 (Vol.2) (who teach standard version) will textbook knowledge conduct a comprehensive. systematic optimizat…ion of the design and layout combinations. and keeping up with the progress of teaching. can rapidly improve pupils port operator. mental arithmetic. skills. techniques and basic computing powe.
