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Language:Chinese,SoftCover,Pub Date:2013-06-01,publisher:China Population Publishing House,description:Paperback, Pub Date :2013-06-01 Pages: 44 Language: Chinese Publisher: China Population Publishing House "ladder Mathematical Thinking Training: Mathematical Enlightenment ( 4-5 years old ) ( stage 1 ) " the right items within 10 points ; understandi...