36*14.4+9.3*32+3.21*32
=36*1.44+9.3*32+3.21*36
=36*(1.44+3.21)+9.3*32
=36*4.65+9.3*32
=18*9.3(36/2*4.65*2)+9.3*32
=9.3*(18+32)
=9.3*50
=465
原式=36*(1.44+8+3.21)+0.3*32=36*12.65+0.3*32=9*50.6+0.3*32=3*0.3*506+0.3*32=0.3*(506*3+32)=0.3*1550=465
这题目有问题的把