有道数学题.用简便运算(2.25×2.7×5.1)÷(8.1×0.25×1.7)一一定用简便啊啊!结果是9
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 17:45:54
![有道数学题.用简便运算(2.25×2.7×5.1)÷(8.1×0.25×1.7)一一定用简便啊啊!结果是9](/uploads/image/z/1711317-21-7.jpg?t=%E6%9C%89%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98.%E7%94%A8%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%EF%BC%882.25%C3%972.7%C3%975.1%EF%BC%89%C3%B7%EF%BC%888.1%C3%970.25%C3%971.7%EF%BC%89%E4%B8%80%E4%B8%80%E5%AE%9A%E7%94%A8%E7%AE%80%E4%BE%BF%E5%95%8A%E5%95%8A%21%E7%BB%93%E6%9E%9C%E6%98%AF9)
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有道数学题.用简便运算(2.25×2.7×5.1)÷(8.1×0.25×1.7)一一定用简便啊啊!结果是9
有道数学题.用简便运算(2.25×2.7×5.1)÷(8.1×0.25×1.7)一一定用简便啊啊!
结果是9
有道数学题.用简便运算(2.25×2.7×5.1)÷(8.1×0.25×1.7)一一定用简便啊啊!结果是9
(2.25×2.7×5.1)÷(8.1×0.25×1.7)
=2.25÷0.25×(2.7÷8.1)×(5.1÷1.7)
=9×1/3×3
=9
(2.25/0.25)*(2.7/8.1)*(5.1/1.7)
=9*1/3*3
=9
(2.25×2.7×5.1)÷(8.1×0.25×1.7)
=(2.25÷0.25)×(2.7÷8.1)×(5.1÷1.7)
=9×(1/3×3)
=9
原式=2.25/0.25*2.7/8.1*5.1/1.7
=9*1/3*3
=9