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题型:计算题 题类:常考题 难易度:普通

西师大版数学四年级下学期 2.2 乘法运算律及简便运算(5)

用简便方法计算。                                                             
(1)、25×32+25×48                                                       
(2)、27×99+27                                                           
(3)、36×99                                                              
(4)、18×26+83×26-26                                                           
(5)、57×99+57                                                   
(6)、103×87
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