简便运算 1.13×67+28×33-15×23 2.64.7×0.25+135.3÷4本人(@ .@)(?.)请写解析,让我学习一下
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![简便运算 1.13×67+28×33-15×23 2.64.7×0.25+135.3÷4本人(@ .@)(?.)请写解析,让我学习一下](/uploads/image/z/763424-8-4.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97+1.13%C3%9767%2B28%C3%9733-15%C3%9723+2.64.7%C3%970.25%2B135.3%C3%B74%E6%9C%AC%E4%BA%BA%EF%BC%88%40+.%40%EF%BC%89%28%3F.%29%E8%AF%B7%E5%86%99%E8%A7%A3%E6%9E%90%2C%E8%AE%A9%E6%88%91%E5%AD%A6%E4%B9%A0%E4%B8%80%E4%B8%8B)
简便运算 1.13×67+28×33-15×23 2.64.7×0.25+135.3÷4本人(@ .@)(?.)请写解析,让我学习一下
简便运算 1.13×67+28×33-15×23 2.64.7×0.25+135.3÷4
本人(@ .@)(?.)
请写解析,让我学习一下
简便运算 1.13×67+28×33-15×23 2.64.7×0.25+135.3÷4本人(@ .@)(?.)请写解析,让我学习一下
1、13×67+28×33-15×23
=13x67+13x33+15x33-15x23
=13x(67+33)+15(33-23)
=13x100+15x10
=1300+150
=1450
2.64.7×0.25+135.3÷4
=64.7x1/4+135.3x1/47
=(64.7+135.3)x1/4
=200x1/4
=50