1.3/7×49/9-4/3

2.8/9×15/36+1/27

3.12×5/6–2/9×3

4.8×5/4+1/4

5.6÷3/8–3/8÷6

6.4/7×5/9+3/7×5/9

7.5/2-(3/2+4/5)

8.7/8+(1/8+1/9)

9.9×5/6+5/6

10.3/4×8/9-1/3

11.7×5/49+3/14

12.6×(1/2+2/3)

13.8×4/5+8×11/5

14.31×5/6–5/6

15.9/7-(2/7–10/21)

16.5/9×18–14×2/7

17.4/5×25/16+2/3×3/4

18.14×8/7–5/6×12/15

19.17/32–3/4×9/24

20.3×2/9+1/3

21.5/7×3/25+3/7

22.3/14××2/3+1/6

23.1/5×2/3+5/6

24.9/22+1/11÷1/2

25.5/3×11/5+4/3

26.45×2/3+1/3×15

27.7/19+12/19×5/6

28.1/4+3/4÷2/3

29.8/7×21/16+1/2

30.101×1/5–1/5×21

31.50+160÷40(58+370)÷(64-45)

32.120-144÷18+35

33.347+45×2-4160÷52

34(58+37)÷(64-9×5)

35.95÷(64-45)

36.178-145÷5×6+42420+580-64×21÷28

37.812-700÷(9+31×11)(136+64)×(65-345÷23)

38.85+14×(14+208÷26)

39.(284+16)×(512-8208÷18)

40.120-36×4÷18+35

41.(58+37)÷(64-9×5)

42.(6.8-6.8×0.55)÷8.5

43.0.12×4.8÷0.12×4.8

44.(3.2×1.5+2.5)÷1.6(2)3.2×(1.5+2.5)÷1.6

45.6-1.6÷4=5.38+7.85-5.37=

46.7.2÷0.8-1.2×5=6-1.19×3-0.43=

47.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9

48.10.15-10.75×0.4-5.7

49.5.8×(3.87-0.13)+4.2×3.74

50.32.52-(6+9.728÷3.2)×2.5

51.[(7.1-5.6)×0.9-1.15]÷2.5

52.5.4÷[2.6×(3.7-2.9)+0.62]

53.12×6÷(12-7.2)-6(4)12×6÷7.2-6

1.[(5.84-3.9)/0.4+0.15]*0.92

2.4.38/(36.94+34.3*0.2)

3.(284+16)*(512-8208/18)

4.5.4/[2.6*(3.7-2.9)+0.62]

5.[(7.1-5.6)*0.9-1.15]/2.5

6.32.52-(6+9.728/3.2)*2.5

7.5.8*(3.87-0.13)+4.2*3.7

8.8/9*[15/16*(7/16-1/4)/1/2]

9.[51/2-1.04*(12/3+5/6)]/2.9

10.63/7/3/7-[(7-0.5)*1/4]

11.(0.75+0.2)/0.25*25%+12/0.75+7.2/2.4

12.1.21*42-(4.46+0.14)*1375+450/18*25

13.1+0.45/0.9-0.75-168.1/(4.3*2-0.4)

14.605*8+3.5-44+10.9-(6.6+0.125/12.5%)

15.56*(56-65)*[0.325-62/30+(56/8)-65]

16.4/7*5/9+3/7*5/9-3/4×8/9-1/3

17.50+160/40*(58+370)/(64-45)

18.347+45×2-4160÷52

19.6-1.6÷4+5.38+7.85-5.37

20.5.4÷[2.6×(3.7-2.9)+0.62。