(-50)-(+27)+19-27-(-40)计算

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(-50)-(+27)+19-27-(-40)计算(-50)-(+27)+19-27-(-40)计算(-50)-(+27)+19-27-(-40)计算(-50)-(+27)+19-27-(-40=-5

(-50)-(+27)+19-27-(-40)计算
(-50)-(+27)+19-27-(-40)计算

(-50)-(+27)+19-27-(-40)计算
(-50)-(+27)+19-27-(-40
=-50-27+19-27+40
=(-50-27-27)+(19+40)
=-104+59
=-45

(-50)-(+27)+19-27-(-40)
＝-50-27+19-27+40
＝（-50-27-27）+（19+40）
＝-104+59
＝-45

(-50)-(+27)+19-27-(-40)计算 28/27*19-19/27简算 8*(8/3+27/1)+27/19 (5/8+1/27)×8+19/27 27 27, 27, 27 27 27 27~ 27 27 27, 50-27等于? 50减去27等于? 25*46+50*27 27/50×99