题目内容
(2013?北京模拟)232.14+64.28×0.5378×0.25+0.5378×64.28×0.75-8×64.28×0.125×0.5378=
232.14
232.14
.分析:232.14+64.28×0.5378×0.25+0.5378×64.28×0.75-8×64.28×0.125×0.5378中,有相同的因数,所以可利用乘法分配律进行巧算.
解答:解:232.14+64.28×0.5378×0.25+0.5378×64.28×0.75-8×64.28×0.125×0.5378,
=232.14+64.28×0.5378×(0.25+0.75-8×0.125),
=232.14+64.28×0.5378×0,
=232.14.
故答案为:232.14.
=232.14+64.28×0.5378×(0.25+0.75-8×0.125),
=232.14+64.28×0.5378×0,
=232.14.
故答案为:232.14.
点评:完成此类题目要认真分析式中数据,找出合适的简算方法.
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