25×2.64+12.5×0.726+0.125.

1个回答

  • 解题思路:化25×2.64=12.5×5.28,0.125=12.5×0.01,再运用乘法分配律展开算式,最后化0.016=8×0.002解答.

    25×2.64+12.5×0.726+0.125,

    =12.5×5.28+12.5×0.726+12.5×0.01,

    =12.5×(5.28+0.726+0.01),

    =12.5×6+12.5×0.016,

    =75+12.5×8×0.002,

    =75+0.2,

    =75.2.

    点评:

    本题考点: 运算定律与简便运算.

    考点点评: 本题主要考查学生运用乘法分配律、乘法结合律解决问题的能力.