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📖 Description
Pub Date: 2013-08-01 Pages: 40 Language: Chinese Publisher: Beijing Education Press compulsory counseling books new classroom textbooks AB volume unit test: Mathematics (with a sophomore Beijing Normal University) The textbook knowledge content a comprehensive. systematic optimization of the design and layout combinations. and keeping up with the progress of teaching. can rapidly improve pupils port operator. mental arithmetic. skills and techniques. and basic computing power speed calculation. and can in time to help students understand and master the lesson. exercise thinking skills.