10-(0.2+6.37*0.7)简便计算
问题描述:
10-(0.2+6.37*0.7)简便计算
急
答
原式=10-0.2-6.37×0.7 =9.8-0.7×6.37 =0.7×14-0.7×6.37 =0.7×(14-6.37) =0.7×7.63 =5.341
10-(0.2+6.37*0.7)简便计算
急
原式=10-0.2-6.37×0.7 =9.8-0.7×6.37 =0.7×14-0.7×6.37 =0.7×(14-6.37) =0.7×7.63 =5.341