1.原式=46.3*0.56+53.8*0.56-0.1*0.56
=(46.3+53.8-0.1)*0.56
=100*0.56
=56
2.原式=100+400+700+900+36*4+0.24*4
=2100+144+0.96
=2244.96
1.原式=46.3*0.56+53.8*0.56-0.1*0.56
=(46.3+53.8-0.1)*0.56
=100*0.56
=56
2.原式=100+400+700+900+36*4+0.24*4
=2100+144+0.96
=2244.96