765×213 / 27+765×327 / 27 =765/27×(213+327) =765×540/27 =765×20 =15300
=765/27×(213+327) =765×540/27 =765×20 =15300
765*213/27+765*327*27=765*(213/27+327*27)=765*(213/27+8829)=765*(79532/9)=6760220注意加号后面的是乘27!