( 1)2.9×(3.8- )÷(2.375- )

(2) 1.5× 1.4+5.8÷0.8

(3)360÷[56×( - )

(4)25× × ×

(5)[ 1-( - )]×

(6)(0.75+0.2)÷0.25×25%

(7) ÷[ 1÷( - )

(8) 10.6-(6.6+0. 125÷ 12.5%)

(9)(80-9.8)×0.6-2. 12

( 10) 1 1 10÷[56×( - )

( 1 1)( + )×45

( 12) 1+45%÷0.9-

( 13) ×[ +( - )]

( 14)(0.8+ )÷ +70%

( 15)36.5÷3.65-0.36× 1.2

( 16) 1000÷250-340×0.389×0

( 17)( + ÷ )×

( 18)(2025-2025÷9)×

( 19) 1 × - ÷ 14

(20)[2-( 1 1.9-8.4× 1 )]÷ 1.3

(2 1)50202÷ 18×20- 184×25

(22)4.8×( 1 1.03- 15.6÷7.5)

(23)2 +(5.4-2 )÷

(24) 10-[( + )÷ ]× 1.2

(25) 150- 120÷ 1.6×0.84

(26)2.7÷( +3÷7.5)

(27) 10 1. 1-25.9+5. 1÷0.85

(28)(2 - )×( ÷ 1 )

(29)(4.2+3 )÷[(2 1.74-2 1)×

(30)4.8-( + )×2

(3 1)2-3÷8- ÷2

(32)(38×25-849)÷0.25

(33)2 × - 1÷ 1

(34)30 100-6089+55998

(35)(4.5-0.5)÷0.7×

(36) 16×45+99× 100 1×0

(37)2 10.5+(6.05-3.35)÷ 1.5

(38)(8-4.6)÷(2.4+ 1 )

(39)( + )×( + )

(40)29× 19+28×8 1

(4 1)2.3×6.2-2 1÷5

(42) × + ÷

(43)( - )×( + )

(44)( + ÷ )×

(45) 1- ÷ ×

(46) ÷[ -( + )]

(47) ×(4.82÷ -3.6+6. 18×3

(48)3.75-( + )×4.5

(49)3.5×4+3.6÷9

(50) × × ÷

(5 1)(0.25+ )×7.2÷

(52)( - )× ÷

(53) ÷[(2- 1.2)× +0.05]

(54)8320+4500÷ 18

(55)( ×0.25)×(0.7×4)

(56)[( 1 + ) × 1.6]÷ 1