初中数学有理数的运算能力训练

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1、初中数学有理数的运算能力训练一、知识点睛加减运算：遇到减法转化成加法进行运算乘除运算：遇到除法转化成乘法进行运算；除法没有分配率．乘方运算：注意指数的管辖范围．混合运算：①观察结构，划分部分；②每一步只解决一个问题，平均分配工作量；③注意检查．二、精讲精练板块一：加减运算1.2.3.4.板块二：乘除运算5.6.51.2.3.板块三：乘方运算=_______，=_______，=_______，=_______，=_______，=_______，=_______，=_______，=_______，=_______，=_______．=_______，

2、=_______．=_______，=_______．板块四：混合运算51.2.3.4.5.6.5三、回顾与思考__________________________________________________________________________________________________________________________________________________________________【参考答案】1．10；2．-30；3．；4．-2；5．10；6．；7．36；8．；9．；板块三：乘方运算=8，=27，=-

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