题目内容

我会改错。(对的在括号里打“√”,错的打“×”并改正)
(1)           740                     
                -        128                改正:
                               622                                
(2)          改正:
(   )
(   )
(3)            改正:
(4)       改正:
(   )
(   )
(5)           改正:
(6)           改正:
(   )
(   )
(1)×;        740
                  -     128   
                        612
(2)×;        289
                  +    351    
                        640
(3)×;           440
                   +      290  
                           730
(4)×;       1000
                 -        82   
                       1928
(5)×;             610
                    -       230    
                            380
(6)×;          547
                   +     384  
                          931        
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