Tính nhanh
a) \(5-\left(1997-2005\right)+1997\)
b) \(1579-\left(53+1579\right)-\left(-53\right)\)
c) \(-48-\left(357-48\right)+300\)
d) \(173-\left(36+173\right)+\left[\left(175-27\right)-175-\left(-36+50\right)\right]\)
e) \(-\left[-171+\left(171+23\right)\right]-\left[172-\left(38+172\right)\right]-49\)
Làm ơn giúp mik vs ạ mik đag cần gấp!