232.14+64.28×0.5378×0.25+0.5378×64.28×0.75-8×64.28×0.125×0.5

1个回答

  • 解题思路: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.

    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.

    点评:

    本题考点: 小数的巧算.

    考点点评: 完成此类题目要认真分析式中数据,找出合适的简算方法.