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(1)9+4.3-28.6=(2)27.7+32.5=(3)64×73=(4)32×64=(5)209×8=(6)18×45=(7)38×12+273=(8)56×16-458=(9)13.4+78.6-25.7=(10)47×25+25×13=(11)38×32-28×32=(12)98.1-27.4-35.8=

题目详情
(1)9+4.3-28.6= (2)27.7+32.5= (3)64×73=
(4)32×64= (5)209×8= (6)18×45=
(7)38×12+273= (8)56×16-458= (9)13.4+78.6-25.7=
(10)47×25+25×13= (11)38×32-28×32= (12)98.1-27.4-35.8=
▼优质解答
答案和解析
(1)        94.3
          -      28.6  
                 65.7
(2)       27.7
           +   32.5   
                60.2
(3)     64
          ×  73   
             192
             448     
            4672
(4)       32
           × 64  
              128
             192     
            2048
(5)      209 
           ×     8   
             1672
(6)       18
         ×    45 
                90
                72     
               810
(7)       38
           ×  12  
                76
               38   
              456   
         +   273  
              729
(8)      56
          × 16   
             336
              56     
             896
          -   458   
             438
(9)        13.4
             +   78.6  
                 92
              -   25.7 
                 66.3
(10)原式=25×(47+13)
                 =25×60
                 =1500
(11)原式=32×(38-28)
                  =32×10
                  =320
(12)       98.1
              -   27.4  
                 70.7
              -   35.8    
                 34.9