计算题:(1)0.125×7.37+×3.63-12.5×0.1(2)1×(2-)+÷(3)(4):

发布时间:2020-07-30 16:30:33

计算题:
(1)0.125×7.37+×3.63-12.5×0.1
(2)1×(2-)+÷
(3)
(4):

网友回答

解:(1)0.125×7.37+×3.63-12.5×0.1,
=0.125×(7.37+3.63-10),
=0.125×1,
=0.125;

(2)1×(2-)+÷,
=×+×,
=×(),
=×,
=3.5;

(3)),
=(-+26×)×,
=(6-1+32)×,
=37×,
=0.5;

(4),
=246×,
=246×,
=690.

解析分析:(1)、(2)、(3)运用乘法分配律解答,(4)化345345345345=345×1001001001,123123123123=123×1001001001解答.

点评:在计算题中正确的运用简便算法可以使计算更简单.
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