简便运算:3又3/5×14.4﹢9.3×32﹢3.21×36=
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/25 11:46:33
简便运算:3又3/5×14.4﹢9.3×32﹢3.21×36=
![简便运算:3又3/5×14.4﹢9.3×32﹢3.21×36=](/uploads/image/z/484682-50-2.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%EF%BC%9A3%E5%8F%883%EF%BC%8F5%C3%9714.4%EF%B9%A29.3%C3%9732%EF%B9%A23.21%C3%9736%3D)
=3.6*14.4+9.3*32+3.21*36
=(1.44+3.21)*36+9.3*32
=4.65*36+9.3*32
=9.3*(18+32)
=9.3*50
=465
=(1.44+3.21)*36+9.3*32
=4.65*36+9.3*32
=9.3*(18+32)
=9.3*50
=465
简便运算:3又3/5×14.4﹢9.3×32﹢3.21×36=
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