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I count math problem pupils Card: port operator mental arithmetic speed calculation ( 3 grade book )(Chinese Edition)

paperback. Condición: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Pub Date :2013-01-01 Pages: 140 Language: Chinese Publisher: China Children Press & Publication primary math mouth computational problems Card: port operator quick mental arithmetic calculation ( 3 grade book ) closely linked to the elementary school mathematics textbooks. questions and materials consistent with the kinds of questions that appear . The textbook knowledge to conduct a comprehensive . systematic optimization of design. layout combinations . so that students can bett.Four Satisfaction guaranteed,or money back. Nº de ref. del artículo: BR069813

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