()5.6×123-5.6×24+5.624×()23÷[()].

发布时间:2020-07-31 11:47:18

()5.6×123-5.6×24+5.624×()23÷[()].

网友回答

解:(1)(),
=,
=,
=2;

(2)5,
=+,
=×(),
=1,
=;

(3)5.6×123-5.6×24+5.6,
=5.6×(123-24+1),
=5.6×100,
=560;

(4)24×(),
=24×24×+24×,
=9+20+6,
=35;

(5),
=,
=,
=3;

(6)23÷[()],
=23÷[],
=23,
=92.

解析分析:(1)先算括号里面的加法,再按照从左到右顺序计算,(2)(3)(4)运用乘法分配律解答,(5)按照从左到右顺序计算,(6)先算小括号里面的,再算中括号里面的,最后算括号外面的解答.

点评:本题主要考查学生依据四则运算计算方法,依据正确选择并运用简便算法解决问题的能力.
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