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/2+ 1/3- 1/4+ 1/5- 1/6=?

3/4-3/5+4/5-4/6+5/6-5/7=?

1/2- 1/2- 1/2+ 1/2=?

1/ 100000+3-32/867=?

1+ 1/2- 1/3=?

15265357 1632375 1563253672 1653/ 10+ 1=?

67/68+34/35-23/24=?

89/90+ 123/ 124-234/235=?

9/7-8/5=?

2/ 1+3/2=?

8/5-6/ 1=?

5/3+7/2=?

6/7-8/3=?

9/8-6/5+3/ 1=?

3/2-6/3+5/2-4/3=?

8/5-7/3+9/2+3/ 1=?

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

7/8 + ( 1/8 + 1/9 )

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

0. 12χ+ 1.8×0.9=7.2 (9-5χ)×0.3= 1.02 6.4χ-χ=28+4.4

1 1.7 × 5/49 + 3/ 14

12.6 ×( 1/2 + 2/3 )

13.8 × 4/5 + 8 × 1 1/5

14.3 1 × 5/6 – 5/6

15.9/7 - ( 2/7 – 10/2 1 )

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

2 1.5/7 × 3/25 + 3/7

22.3/ 14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24.9/22 + 1/ 1 1 ÷ 1/2

25.5/3 × 1 1/5 + 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 × 2 1/ 16 + 1/2

30. 10 1 × 1/5 – 1/5 × 2 1

3 1.50+ 160÷40 (58+370)÷(64-45)

32. 120- 144÷ 18+35

33.347+45×2-4 160÷52

34(58+37)÷(64-9×5)

35.95÷(64-45)

36. 178- 145÷5×6+42 420+580-64×2 1÷28

37.8 12-700÷(9+3 1× 1 1) ( 136+64)×(65-345÷23)

38.85+ 14×( 14+208÷26)

39.(284+ 16)×(5 12-8208÷ 18)

40. 120-36×4÷ 18+35

4 1.(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)×2.5/2+ 1/3- 1/4+ 1/5- 1/6=?

3/4-3/5+4/5-4/6+5/6-5/7=?

1/2- 1/2- 1/2+ 1/2=?

1/ 100000+3-32/867=?

1+ 1/2- 1/3=?

15265357 1632375 1563253672 1653/ 10+ 1=?

67/68+34/35-23/24=?

89/90+ 123/ 124-234/235=?

9/7-8/5=?

2/ 1+3/2=?

8/5-6/ 1=?

5/3+7/2=?

6/7-8/3=?

9/8-6/5+3/ 1=?

3/2-6/3+5/2-4/3=?

8/5-7/3+9/2+3/ 1=?

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

7/8 + ( 1/8 + 1/9 )

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

0. 12χ+ 1.8×0.9=7.2 (9-5χ)×0.3= 1.02 6.4χ-χ=28+4.4

1 1.7 × 5/49 + 3/ 14

12.6 ×( 1/2 + 2/3 )

13.8 × 4/5 + 8 × 1 1/5

14.3 1 × 5/6 – 5/6

15.9/7 - ( 2/7 – 10/2 1 )

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

2 1.5/7 × 3/25 + 3/7

22.3/ 14 ×× 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24.9/22 + 1/ 1 1 ÷ 1/2

25.5/3 × 1 1/5 + 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 × 2 1/ 16 + 1/2

30. 10 1 × 1/5 – 1/5 × 2 1

3 1.50+ 160÷40 (58+370)÷(64-45)

32. 120- 144÷ 18+35

33.347+45×2-4 160÷52

34(58+37)÷(64-9×5)

35.95÷(64-45)

36. 178- 145÷5×6+42 420+580-64×2 1÷28

37.8 12-700÷(9+3 1× 1 1) ( 136+64)×(65-345÷23)

38.85+ 14×( 14+208÷26)

39.(284+ 16)×(5 12-8208÷ 18)

40. 120-36×4÷ 18+35

4 1.(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 1+0/6.

2、 1/3+2/5

3、2/7+ 1/2

4、 17/24-5/ 12

5、 1/3+ 1/4

6, 1 5/8-2/3

7,4 and 1/2-4

8、2/ 13- 1/26

9、7/8-4/9

10. 15/20= 1 1/20

1 1. 1/2+4/9

12.2/ 15+8/ 15

13. 1/2- 1/4

14.3/7+3/8

15. 1/3+ 1/5

16. 1/2+3/5

17.2/5- 1/5

18. 12-7 3/8

19.2/3+3/4

20.4/ 15+7/ 10

2 1.7/ 14-5/ 14

22.5/8- 1/6

23. 1/2+ 1/8

24.2/7+ 1/3

25. 1/6- 1/7

26.3/8- 1/4

27.2/3- 1/2

28. 1/7+3/ 14

29.3/7-3/7

30.9/ 10-3/ 10

the second part

1, 3 and 1/3- 1 and 2/3- 1

2、8.5*0.25*4

3、2.9+3.8+5.6

4、 10.8-4.6-3.4

5、0. 1+0. 1*0. 1

6、 125*8

7、 12.5*4

8、 1/2*3/4

9、 12/ 13* 13/2

10.3/5+ 1/4

1 1. 126*2-2

12. 1/3*4

13. 12* 12/24

14.5/8*4

15.7/ 13*33

16.6*2/3

17.2/33* 1 1

18. 12* 1/3

19.20* 1/4

20.9/ 14*2 1

49.5.8×(3.87-0. 13)+4.2×3.74

50.32.52-(6+9.728÷3.2)×2.5