解:(1)0.25×〔

÷(4-2.4×

)〕,
=0.25×〔

÷(4-

×

)〕,
=0.25×〔

÷(4-2)〕,
=0.25×〔

÷2〕,
=

×

,
=

;
(2)〔1

-8.19÷(5.25+1

)〕×

÷17%,
=〔1

-8.19÷(5.25+1.75)〕×

÷17%,
=〔1

-8.19÷7〕×

÷17%,
=〔1

-1.17〕×

×

,
=(

-

)×

×

,
=

×

×

-

×

×

,
=

-

,
=

-

=

;
(3)6

-(5

-1

)+1

,
=6

-5

+1

+1

,
=6

-5

+1

+1

,
=1

+1

+1

,
=4

;
(4)4.83×0.59+0.41×1.59-0.324×5.9,
=4.83×0.59+0.41×1.59-3.24×0.59,
=(4.83-3.24)×0.59+0.41×1.59,
=1.59×0.59+0.41×1.59,
=(0.59+0.41)×1.59,
=1×1.59,
=1.59;
(5)5.6-(□×3

-1

×□)÷5

=2

,
5.6-(

×□)÷5

=2

,
5.6-(

×□)×

=2

,
5.6-

×□=2

,

×□=5.6-2.6,
□=3÷

,
□=12.
故答案为:(1)

;(2)

;(3)4

;(4)1.59;(5)12.
分析:(1)、(2)、(3)按整数、分数、小数、百分数四则混合运算的运算顺序和计算法则进行计算;
(4)把0.324×5.9变成3.24×0.59后先运用乘法分配律计算4.83×0.59-3.24×0.59,得到1.59×0.59,然后再运用乘法分配律进行简算;
(5)“□”为未知数,用解方程的解题思路求解.
点评:此题考查整数、分数、小数、百分数四则混合运算,按计算法则计算,同时注意运用定律进行简算.