3.42x76.3+7.63x57.6+9.18x23.7简便计算

Question

如题所述

Answer 1

3.42x76.3+7.63x57.6+9.18x23.7=3.42x10x7.63+7.63x57.6+9.18x23.7=(34.2+57.6)x7.63+9.18x23.7=91.8x7.63+9.18x23.7=9.18x(76.3+23.7)=9.18x100=918