题目内容
(0.55×4.8-4.5×0.48)÷96.
解:(0.55×4.8-4.5×0.48)÷96,
=(5.5×4.8-4.5×0.48)÷96,
=(5.5-4.5)×0.48÷96,
=1×0.48÷96,
=0.48÷96,
=0.005.
分析:(0.55×4.8-4.5×0.48)÷96.首先根据积的变化规律,将原式转化为(5.5×0.48-4.5×0.48)÷96,再运用乘法分配律进行简算.
点评:解答此题的关键是通过转化,再运用乘法分配律进行简便计算.
=(5.5×4.8-4.5×0.48)÷96,
=(5.5-4.5)×0.48÷96,
=1×0.48÷96,
=0.48÷96,
=0.005.
分析:(0.55×4.8-4.5×0.48)÷96.首先根据积的变化规律,将原式转化为(5.5×0.48-4.5×0.48)÷96,再运用乘法分配律进行简算.
点评:解答此题的关键是通过转化,再运用乘法分配律进行简便计算.
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