1、 2-6/ 13÷9/26-2/3

2、 2/9+ 1/2÷4/5+3/8

3.(23/4-3/4)*(3*6+2)

4.3/7 × 49/9 - 4/3

5.8/9 × 15/36 + 1/27

6. 12× 5/6 – 2/9 ×3

7.8× 5/4 + 1/4

8.6÷ 3/8 – 3/8 ÷6

9.4/7 × 5/9 + 3/7 × 5/9

10.5/2 -( 3/2 + 4/5 )

1 1.7/8 + ( 1/8 + 1/9 )

12.9 × 5/6 + 5/6

13.3/4 × 8/9 - 1/3

14.7 × 5/49 + 3/ 14

15.6 ×( 1/2 + 2/3 )

16.8 × 4/5 + 8 × 1 1/5

17.3 1 × 5/6 – 5/6

18.9/7 - ( 2/7 – 10/2 1 )

19.5/9 × 18 – 14 × 2/7

20.4/5 × 25/ 16 + 2/3 × 3/4

2 1. 14 × 8/7 – 5/6 × 12/ 15

22. 17/32 – 3/4 × 9/24

23.3 × 2/9 + 1/3

24.5/7 × 3/25 + 3/7

25.3/ 14 ×× 2/3 + 1/6

26. 1/5 × 2/3 + 5/6

27.9/22 + 1/ 1 1 ÷ 1/2

28.5/3 × 1 1/5 + 4/3

29.45 × 2/3 + 1/3 × 15

30.7/ 19 + 12/ 19 × 5/6

3 1. 1/4 + 3/4 ÷ 2/3

32.8/7 × 2 1/ 16 + 1/2

33. 10 1 × 1/5 – 1/5 × 2 1

34.50+ 160÷40

35. 120- 144÷ 18+35

36.347+45×2-4 160÷52

37(58+37)÷(64-9×5)

38.95÷(64-45)

39. 178- 145÷5×6+42

40.8 12-700÷(9+3 1× 1 1)

4 1.85+ 14×( 14+208÷26)

43. 120-36×4÷ 18+35

44.(58+37)÷(64-9×5)

45.(6.8-6.8×0.55)÷8.5

46.0. 12× 4.8÷0. 12×4.8

47.(3.2× 1.5+2.5)÷ 1.6

48.6- 1.6÷4= 5.38+7.85-5.37=

49.7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=

50.6.5×(4.8- 1.2×4)=

5 1.5.8×(3.87-0. 13)+4.2×3.74

52.32.52-(6+9.728÷3.2)×2.5

53.[(7. 1-5.6)×0.9- 1. 15] ÷2.5

54.5.4÷[2.6×(3.7-2.9)+0.62]

55. 12×6÷( 12-7.2)-6

56. 12×6÷7.2-6

57.0.68× 1.9+0.32× 1.9

58.58+370)÷(64-45)

59.420+580-64×2 1÷28

60. 136+6×(65-345÷23)

15- 10.75×0.4-5.7

62. 18. 1+(3-0.299÷0.23)× 1

63.(6.8-6.8×0.55)÷8.5

64.0. 12× 4.8÷0. 12×4.8

65.(3.2× 1.5+2.5)÷ 1.6

66.3.2×6+( 1.5+2.5)÷ 1.6

67.0.68× 1.9+0.32× 1.9

68. 10. 15- 10.75×0.4-5.7

69.5.8×(3.87-0. 13)+4.2×3.74

70.32.52-(6+9.728÷3.2)×2.5

7 1.[(7. 1-5.6)×0.9- 1. 15] ÷2.5

72.5.4÷[2.6×(3.7-2.9)+0.62]

73. 12×6÷( 12-7.2)-6

74. 12×6÷7.2-6

75.33.02-( 148.4-90.85)÷2.5

1) 76.(25%-695%- 12%)*36

77./4*3/5+3/4*2/5

78. 1- 1/4+8/9/7/9

79.+ 1/6/3/24+2/2 1

80./ 15*3/5

8 1.3/4/9/ 10- 1/6

82./3+ 1/2)/5/6- 1/3]/ 1/7

83./5+3/5/2+3/4

84.(2-2/3/ 1/2)]*2/5

85.+5268.32-2569

86.3+456-52*8

87.5%+6325

88. 1/2+ 1/3+ 1/4