原式=99x83=(100-1)x83=100x83-1x83=8300-83=8217 供参考.
99*83=(100-1)*83=100*83-1*83=8300-83=8217
100-1+83=100+(83-1)=182
解:99乘83 =99X83 =(100-1)X83 =100X83-1X83 =8300-83 =8217
99乘83简便计算怎么做99乘83=83*(100-1)=83*100-83=8300-83=8217
发讥篡客诂九磋循单末简便计算: 93*99+93 =93*99+93*1 =93*(99+1) =93*100 =9300
83 99的简便运算是什么83 99=83+100-1=183-1=182
83x(100-1) 8300-83 =8217 求采纳.
83乘99=83*(100-1)=83*100-83=8300-83=8217
99*83+83=83*(99+1)=83*100=8300