63×4.56 3.63×5.44的简便运算
答案:1 悬赏:30 手机版
解决时间 2021-01-13 17:59
- 提问者网友：那叫心脏的地方装的都是你
- 2021-01-12 23:56
63×4.56 3.63×5.44的简便运算
最佳答案
- 五星知识达人网友：西风乍起
- 2021-01-13 00:02
63×4.56+ 3.63×5.44
=63×4.56+ 63×5.44-59.37×5.44
=63(4.56+5.44)-59.37×5.44
=630-59.37×5.44
=570.63+59.37-59.37×5.44
=570.63-59.37×4.44
=570.63-59.37×4*1.11
=570.63-4（60-0.63）*1.11
=570.63-（240-2.52）*1.11
=570.63-237.48*1.11
=570.63-237.48-23.748-2.3748
=307.0272
=63×4.56+ 63×5.44-59.37×5.44
=63(4.56+5.44)-59.37×5.44
=630-59.37×5.44
=570.63+59.37-59.37×5.44
=570.63-59.37×4.44
=570.63-59.37×4*1.11
=570.63-4（60-0.63）*1.11
=570.63-（240-2.52）*1.11
=570.63-237.48*1.11
=570.63-237.48-23.748-2.3748
=307.0272
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