(+)×29×23=________,÷7+×=________,=________.

发布时间:2020-08-05 08:36:49

(+)×29×23=________,
÷7+×=________,
=________.

网友回答

133        0.1
解析分析:(1)(2)利用乘法分配律进行简算,(3)利用四则混合运算的顺序解答即可.

解答:(1),
=,
=46+87,
=133;
(2),
=,
=,
=,
=;
(3),
=,
=1.56÷[12+3.6],
=1.56÷15.6,
=0.1.

点评:考查学生四则运算的顺序及学生运用简便算法的能力.
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