【四升五数学暑假】 小数乘法简便运算分类练习题

【四升五数学暑假】 小数乘法简便运算分类练习题


简介:
一、乘法交换律 ①0.25×8.5×4 =0.25×4×8.5 =1×8.5 =8.5 ②12.5×0.96×0.8 =0.96×(12.5×0.8) =0.96×10 =9.6 二、乘法结合律 ①4.36×12.5×8 =4.36×(12.5×8) =4.36×100 =436 ②0.25×13.7×0.4 =0.25×0.4×13.7 =0.1×13.7 =1.37 三、乘法分配律