下面各算式去了括号后,左右不相等的是A.224+(112+56)=224+112+56B.224-(112-56)=224-112+56C.224×(112×56)=

发布时间:2020-08-10 23:56:17

下面各算式去了括号后,左右不相等的是A.224+(112+56)=224+112+56B.224-(112-56)=224-112+56C.224×(112×56)=224×112×56D.224÷(112÷56)=224÷112×56E.224÷(112÷56)=224÷112÷56

网友回答

E
解析分析:根据题意,分别求出各个选择中的结果,然后再进一步解答.

解答:A、224+(112+56),
=224+168,
=392;
224+112+56,
=336+56,
=392;
所以,224+(112+56)=224+112+56;B、224-(112-56),
=224-56,
=168;
224-112+56,
=112+56,
=168;
所以,224-(112-56)=224-112+56;C、224×(112×56),
=224×6272,
=1404928;
224×112×56,
=25088×56,
=1404928;
所以,224×(112×56)=224×112×56;D、224÷(112÷56),
=224÷2,
=112;
224÷112×56,
=2×56,
=112;
所以,224÷(112÷56)224÷112×56;E、224÷(112÷56),
=224÷2,
=112;
224÷112÷56,
=2÷56,
=;
所以,224÷(112÷56)≠224÷112÷56.
故选:E.

点评:关键是求出每个选项中结果,然后再进一步解答.
以上问题属网友观点,不代表本站立场,仅供参考!