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题型:综合题 题类:常考题 难易度:普通

人教版数学四年级下册第四周冲刺卷 加法运算定律(适用于云南地区)

用简便方法计算。                                               
(1)、394+1286+406                                                       
(2)、197+121+169+56+444                                                           
(3)、442-103                                                               
(4)、728-598                                                    
(5)、318+274+182+26                                                      
(6)、539+(61+258)+l42                                                   
(7)、51+142+49+58                                                 
(8)、36+79+121+264                                                     
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