问题 计算题
笔算下面各题。
(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=
答案

(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

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