解:(1)0.48+10.8÷0.36×0.54,
=0.48+30×0.54,
=0.48+16.2,
=16.68;
(2)[9.08-(0.61+1.75)]+3.2,
=[9.08-2.36]+3.2,
=6.72+3.2,
=9.92;
(3)

-

÷

+

,
=

-

×

+

,
=

-

+

,
=

+

,
=

;
(4)

÷[(

-

)÷

],
=

÷[

÷

],
=

÷[

×

],
=

÷

,
=

×

,
=6.
分析:(1)先算除法和乘法,再算加法;
(2)(4)先算小括号内的,再算中括号内的,最后算括号外的;
(3)先算除法,再算减法和加法.
点评:用递等式计算,特别注意运算顺序和运算法则.