0.888×9.2+0.222×3.2的简便计算

问题描述:

0.888×9.2+0.222×3.2的简便计算

0.888x9.2+0.222x3.2=0.888x9.2+0.222x4x0.8=0.888x9.2+0.888x0.8=0.888x(9.2+0.8)=0.888x10=88.8