125x32的簡便計算:
①125x32=125x(8x4)=125x8x4=1000x4=4000;
②125x32=125x(40-8)=125x40-125x8=5000-1000=4000。
125x32簡便計算
125x32
=125x(8x4)
=(125x8)x4
=1000x4
=4000
求贊