用乘法分配律计算下面的题:(1)752×1.25+4.45×12.5+0.035×125(2)0.42×160+36×1.6

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用乘法分配律计算下面的题:(1)752×1.25+4.45×12.5+0.035×125(2)0.42×160+36×1.6

用乘法分配律计算下面的题:(1)752×1.25+4.45×12.5+0.035×125(2)0.42×160+36×1.6
用乘法分配律计算下面的题:(1)752×1.25+4.45×12.5+0.035×125(2)0.42×160+36×1.6

用乘法分配律计算下面的题:(1)752×1.25+4.45×12.5+0.035×125(2)0.42×160+36×1.6
(1) 752×1.25+4.45×12.5+0.035×125
=(75.2+4.45+0.35)×12.5
=80×12.5
=1000
(2) 0.42×160+36×1.6
=(42+36)×1.6
=80×1.6
=128