有理数混合运算200道

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有理数的加减混合运算

1.计算题

(1)3.28-4.76+1 - ;(2)2.75-2 -3 +1 ;

(3)42÷(-1 )-1 ÷(-0.125); (4)(-48) ÷82-(-25) ÷(-6)2;

(5)- +( )×(-2.4).

2.计算题:(10′×5=50′)

(1)-23÷1 ×(-1 )2÷(1 )2 (2)-14-(2-0.5)× ×[( )2-( )3]; (3)-1 ×[1-3×(- )2]-( )2×(-2)3÷(- )3 (4)(0.12+0.32) ÷ [-22+(-3)2-3 × ];

(5)-6.24×32+31.2×(-2)3+(-0.51) ×624.

[-|98|+76+(-87)]*23 [56+(-75)-(7)]-(8+4+3)

5+21*8/2-6-59 68/21-8-11*8+61

-2/9-7/9-56 4.6-(-3/4+1.6-4-3/4)

1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2

22+(-4)+(-2)+4*3 -2*8-8*1/2+8/1/8

(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)

2/(-2)+0/7-(-8)*(-2) (1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2) (5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6) 1/2*(-4/15)/2/3

75÷〔138÷(100-54)〕85×(95-1440÷24)

80400-(4300+870÷15) 240×78÷(154-115)

1437×27+27×563 〔75-(12+18)〕÷15

2160÷〔(83-79)×18〕280+840÷24×5

325÷13×(266-250) 85×(95-1440÷24)

58870÷(105+20×2) 1437×27+27×563

81432÷(13×52+78) [37.85-(7.85+6.4)] ×30

156×[(17.7-7.2)÷3] (947-599)+76×64

36×(913-276÷23) [192-(54+38)]×67

[(7.1-5.6)×0.9-1.15]÷2.5 81432÷(13×52+78)

5.4÷[2.6×(3.7-2.9)+0.62] (947-599)+76×64 60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕(31.8 3.2×4)÷5

194-64.8÷1.8×0.9 36.72÷4.25×9.9

3.416÷(0.016×35)0.8×[(10-6.76)÷1.2] (136+64)×(65-345÷23)(6.8-6.8×0.55)÷8.5 0.12×

4.8÷0.12×4.8 (58+37)÷(64-9×5)812-700÷(9+31×11)(3.2×1.5+2.5)÷1.6

85+14×(14+208÷26)120-36×4÷18+35 (284+16)×(512-8208÷18)9.72×1.6-18.305÷7

4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10 12.78-0÷(13.4+156.6 )37.812-700÷(9+31×11)(136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6

85+14×(14+208÷26)(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18)0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 120-36×4÷18+35 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 347+45×2-4160÷52 32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)[(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6

3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6

5.8×(3.87-0.13)+4.2×3.74 33.02-(148.4-90.85)÷2.5

(一)计算题:

(1)23+(-73) (2)(-84)+(-49)

(3)7+(-2.04) (4)4.23+(-7.57)

(5)(-7/3)+(-7/6) (6)9/4+(-3/2)

(7)3.75+(2.25)+5/4 (8)-3.75+(+5/4)+(-1.5)

(9)(-17/4)+(-10/3)+(+13/3)+(11/3)

(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)

(11)(+1.3)-(+17/7) (12)(-2)-(+2/3)

(13)|(-7.2)-(-6.3)+(1.1)| (14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|) (15)(-2/199)*(-7/6-3/2+8/3) (16)4a)*(-3b)*(5c)*1/6

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

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