怎样简便就怎样算[1-(+)]÷13÷25%÷4+÷+÷7+××(+)+10÷+×4÷+××÷(-)(+-)÷44×.

发布时间:2020-08-07 05:50:05

怎样简便就怎样算
[1-(+)]÷13÷25%÷4+÷+÷7+××(+)+10÷+×4÷+××÷(-)(+-)÷44×.

网友回答

解:[1-(+)]÷,
=(1-)×4,
=×4,
=,
=1;÷7+×,
=×+×,
=×(+),
=×,
=;÷+×,
=×+×,
=×(+),
=×1,
=;44×,
=(43+1)×,
=43×+1×,
=2+,
=2;13÷25%÷4,
=13÷(25%×4),
=13÷1,
=13;
×(+)+,
=×+×+,
=2++,
=2+2,
=4;
×÷(-),
=÷(-),
=÷,
=×,
=;
+÷+,
=+×+,
=++,
=+1,
=1;
10÷+×4,
=10×+,
=45+,
=45;
(+-)÷,
=(+-)÷,
=0÷,
=0.
解析分析:分数的四则混合运算规律遵从整数的四则混合运算,先算乘除,后算加减,有括号的先算括号内的;分数乘以整数,分母不变,分子相乘;除以一个分数,等于乘以这个分数的倒数.

点评:此题考查了分数的四则混合运算,认真解答是关键.记住:0除以任何数(0除外)都得0.
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