[19.08+(3.2-0.299/0.23)]*0.25简便计算,

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[19.08+(3.2-0.299/0.23)]*0.25简便计算,[19.08+(3.2-0.299/0.23)]*0.25简便计算,[19.08+(3.2-0.299/0.23)]*0.25简便计

[19.08+(3.2-0.299/0.23)]*0.25简便计算,
[19.08+(3.2-0.299/0.23)]*0.25
简便计算,

[19.08+(3.2-0.299/0.23)]*0.25简便计算,
[(19+0.08)+(3.2-299/230)]/4
=(22.28-1.3)/4
=20.98/4
=5.245