Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Paperback. Pub Date: 2017-06-01 Pages: 96 Language: Chinese Publisher: Jilin Fine Arts Publishing House. Elementary calculation is the foundation of mathematics learning. No matter how strong the logical thinking ability. if the calculation is slow or the calculation is wrong. it will fall short.?This book is an exercise book to train children to master * basic calculations. On the basis of mastering the basic calculations within 10. perform basic calculations within 20 to strengthen the calc. N° de réf. du vendeur NS017359
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