99*83+83=83*(99+1)=83*100=8300
83+83*99=83*(1+99)=8300
简便计算99*83+83=(99+1)x83=100x83=8300
83*83*99=83*83*(100-1)=83*83*100-83*83=682011 答案:682011.
99x83+83 =(99+1)x83 =100x83 =8300
83x182-83x82 =83x(182-82) =83x100 =8300
83+83*99 =83*1+99 =8300
99*83=(100-1)*83=100*83-1*83=8300-83=8217
解:99乘83 =99X83 =(100-1)X83 =100X83-1X83 =8300-83 =8217
83*99+83=83*(99+1)=83*100=8300