作业帮[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/29 00:08:29
![[1.9+1.9*(4.8-3.81)]/(2.9-2.8)](/uploads/image/z/106337-65-7.jpg?t=%5B1.9%2B1.9%2A%284.8-3.81%29%5D%2F%282.9-2.8%29)
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[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
[1.9+1.9x(4.8-3.81)]/(2.9-2.8)
=[1.9+1.9x0.99]/0.1
=[1.9+1.881]/0.1
=3.781/0.1
=37.81
(1.9+1.9x0.99)/0.1=(1.9+1.9-0.019)x10=3.781x10=37.81
[1.9+1.9*(4.8-3.81)]/(2.9-2.8)
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