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How long does it take to preview the first volume of the eighth grade mathematics in Shanghai Science Edition?
The first volume of eighth grade mathematics in Shanghai Science Edition can be previewed in 45 minutes to 2 hours. The eighth grade mathematics textbook of Shanghai Science Edition contains 18 chapters, and each chapter is previewed for about 30 minutes on average. However, if students have the corresponding basic knowledge, the preview time of each chapter will be reduced, so the total time is between 45 minutes and 2 hours. Therefore, the first volume of the eighth grade mathematics in Shanghai Science Edition can be previewed in 45 minutes to 2 hours.