求10.89*10.69-108.9*0.025-1.089*4.4 306*51/17 0.035*935+0.35*0.3+0.035+0.7*6.1*0.5的简便方法
问题描述：
求10.89*10.69-108.9*0.025-1.089*4.4 306*51/17 0.035*935+0.35*0.3+0.035+0.7*6.1*0.5的简便方法
答
10.89*10.69-108.9*0.025-1.089*4.4 =1.089*106.9-1.089*2.5-1.089*4.4 =1.089*（106.9-2.5-4.4） =1.089*100 =108.9； 306*51/17=306*3=918； 0.035*935+0.35*0.3+0.035+0.7*6.1*0.5 =3.5*9.35+3.5*0.03+3.5*0.01+3...