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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+42 420+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
二:1.X-5.7=2.15
2.15 5X-2X=18
3.3X+0.7=5
4.3.5×2= 4.2+x
5.26×1.5= 2x+10
6.0.5×16―16×0.2=4x
7.13 9.25-X=0.403
8.16.9÷X=0. 3
9.X÷0.5=2.6
10.x+13=33
11.3 - 5x=80
12.1.8 +6x=54
13.6.7x -60.3=6.7
14.9 +4x =40
15.80*3.8=X*2.6
16.3X-X=24
17.3X-X=42
18.2X=42
19.X-99=88
20.30-X=1
21.654+X=999
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+42 420+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
二:1.X-5.7=2.15
2.15 5X-2X=18
3.3X+0.7=5
4.3.5×2= 4.2+x
5.26×1.5= 2x+10
6.0.5×16―16×0.2=4x
7.13 9.25-X=0.403
8.16.9÷X=0. 3
9.X÷0.5=2.6
10.x+13=33
11.3 - 5x=80
12.1.8 +6x=54
13.6.7x -60.3=6.7
14.9 +4x =40
15.80*3.8=X*2.6
16.3X-X=24
17.3X-X=42
18.2X=42
19.X-99=88
20.30-X=1
21.654+X=999
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http://www.aoshu.cn/Article_D/2004-06/662214791272437.htm这网站有很多.在这里也出一些啦~~
1 (1+0.24+0.35)×(0.24+0.35+0.46)-(1+0.24+0.35+0.46)×(0.24+0.35)
2 2000.5_1999.3+1998.5-1997.3+......+2.5-1.3
3 4.75×88-0.475×540-47.5×2.4
.......(网站里有)
1 (1+0.24+0.35)×(0.24+0.35+0.46)-(1+0.24+0.35+0.46)×(0.24+0.35)
2 2000.5_1999.3+1998.5-1997.3+......+2.5-1.3
3 4.75×88-0.475×540-47.5×2.4
.......(网站里有)
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5/9-2/7+4/9-3/7=,0.25*56+1/4*44=,(1/6+4/9-1/3)*18,(39/8+13/16)/13/16,8/15/(1/15+8/15),0.8*(22/5)+9.2*(22/5),4/5*8*(5/8)*(1/4)
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