0.1×19.87+0.5×198.7的简便算法
问题描述:
0.1×19.87+0.5×198.7的简便算法
答
1.987+0.5*(200-1.3)=1.987+100-0.65=100+1.337=101.337
0.1×19.87+0.5×198.7的简便算法
1.987+0.5*(200-1.3)=1.987+100-0.65=100+1.337=101.337