江苏省大丰市大中镇八年级数学下册10.4分式的乘除(2)作业(新版)苏科版.doc

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110.4 分式的乘除(2)作业【基础题】 1.计算: = _.ba12 =_)(yx2.已 知 m = ,则 m 等于 ( )2x1A . - B. C. D. - yxyxy2xy23.计算: (1) (2) 324a aa24)(( 3) (1)2ba4. 先化简 ,再求值: ,再选一个自己喜欢的 a 的值带入求值241aa210.4 分式的乘除(2)板书设计1.怎样计算: ab ?12试一试:计算 (1) ;nmpq(2)( xy x2) yx例 3 求值: ,其中 a10、 b5、 c42 abc2abc 2abc 例 4 计算:1 24

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