2018年秋七年级数学上册第一章有理数第14课时有理数的除法(1)(作业本)课件(新版)新人教版.ppt

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作 业 本,第14课时 有理数的除法(1),第一章 有理数,作 业 本,一、选择或填空题(每题10分,共40分) 1下列运算错误的是( ) A (3)=3(3) B5( )=5(2) C8(2)=8+2 D03=0 2计算(16) 的结果等于( ) A32 B32 C8 D8,A,B,作 业 本,3计算:(12)3=_4计算: (1)0(22)=_; (2)(48)(6)=_,-4,22,8,作 业 本,二、解答题(每题20分,共60分) 5.化简下列分数:解:,作 业 本,6.计算: (1)(+36)(4); (3)(90)15; (4)1(+ ).解:,作 业 本,7. 计算: (1)(40)(8); (2)(5.2)3 .解:,

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