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七年级数学上册有理数混合运算练习题

七年级数学上册有理数混合运算练习题 (满分:100分 考试时间:90分钟) 姓名:__________ 学号:__________ 班级:__________ 完成时间:_______ 分钟 得分:_______ 一、有理数加减混合运算(共20题,每题1分,共20分) 请直接写出各题的得数: 1. ( − 3 ) + 5 = (-3) + 5 = ( − 3

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七年级数学上册有理数混合运算练习题


(满分:100分 考试时间:90分钟)

姓名:__________ 学号:__________ 班级:__________

完成时间:_______ 分钟 得分:_______


一、有理数加减混合运算(共20题,每题1分,共20分)

请直接写出各题的得数:

1. (−3)+5=(-3) + 5 =

2. 7−12=7 - 12 =

3. −8+4=-8 + 4 =

4. −6−9=-6 - 9 =

5. 12+(−5)=12 + (-5) =

6. −15+(−7)=-15 + (-7) =

7. 24−38=24 - 38 =

8. −17+20=-17 + 20 =

9. 9−25=9 - 25 =

10. −30+18=-30 + 18 =

11. 5−12+8=5 - 12 + 8 =

12. −7+15−6=-7 + 15 - 6 =

13. −18−7+25=-18 - 7 + 25 =

14. 20−36+14=20 - 36 + 14 =

15. −13+9−20=-13 + 9 - 20 =

16. 16−28+42=16 - 28 + 42 =

17. −25+17+8=-25 + 17 + 8 =

18. 31−54+23=31 - 54 + 23 =

19. −42+18−26=-42 + 18 - 26 =

20. 55−73+18=55 - 73 + 18 =


二、有理数乘除混合运算(共20题,每题1分,共20分)

请直接写出各题的得数:

21. (−3)×6=(-3) \times 6 =

22. 8×(−5)=8 \times (-5) =

23. (−7)×(−4)=(-7) \times (-4) =

24. 12÷(−3)=12 \div (-3) =

25. (−24)÷6=(-24) \div 6 =

26. (−36)÷(−9)=(-36) \div (-9) =

27. 5×(−8)×2=5 \times (-8) \times 2 =

28. (−6)×4÷3=(-6) \times 4 \div 3 =

29. (−18)÷2×(−3)=(-18) \div 2 \times (-3) =

30. 20÷(−5)×7=20 \div (-5) \times 7 =

31. (−14)×2÷(−7)=(-14) \times 2 \div (-7) =

32. 45÷(−9)×4=45 \div (-9) \times 4 =

33. (−3)×5×(−6)=(-3) \times 5 \times (-6) =

34. 72÷(−8)÷(−3)=72 \div (-8) \div (-3) =

35. (−9)×2×(−5)=(-9) \times 2 \times (-5) =

36. −64÷16×4=-64 \div 16 \times 4 =

37. 25×(−4)÷10=25 \times (-4) \div 10 =

38. (−4)×9÷(−6)=(-4) \times 9 \div (-6) =

39. −81÷9×(−5)=-81 \div 9 \times (-5) =

40. 7×(−8)÷(−14)=7 \times (-8) \div (-14) =


三、有理数四则混合运算(共30题,每题1分,共30分)

请按有理数混合运算顺序,直接写出各题的得数:

41. −2+5×4=-2 + 5 \times 4 =

42. −3×4+7=-3 \times 4 + 7 =

43. 6−12÷4=6 - 12 \div 4 =

44. −5+8÷(−2)=-5 + 8 \div (-2) =

45. 4×(−6)+9=4 \times (-6) + 9 =

46. 12÷(−3)+8=12 \div (-3) + 8 =

47. −7+2×5=-7 + 2 \times 5 =

48. −9−3×4=-9 - 3 \times 4 =

49. 18÷(−6)−5=18 \div (-6) - 5 =

50. −6×8+15=-6 \times 8 + 15 =

51. −10+3×6=-10 + 3 \times 6 =

52. 8−20÷(−5)=8 - 20 \div (-5) =

53. −4+18÷3=-4 + 18 \div 3 =

54. −7×6+9=-7 \times 6 + 9 =

55. 15−25÷(−5)=15 - 25 \div (-5) =

56. −24÷8+13=-24 \div 8 + 13 =

57. −5+4×(−7)=-5 + 4 \times (-7) =

58. −16−12÷(−3)=-16 - 12 \div (-3) =

59. −8+6×7=-8 + 6 \times 7 =

60. 9−24÷(−6)=9 - 24 \div (-6) =

61. −3+5×(4−9)=-3 + 5 \times (4 - 9) =

62. (7−12)×(−3)+8=(7 - 12) \times (-3) + 8 =

63. (−5)×(−2)+36÷(−9)=(-5) \times (-2) + 36 \div (-9) =

64. 18÷(−3)+(−5)×4=18 \div (-3) + (-5) \times 4 =

65. 4−(−7)×(−2)+6=4 - (-7) \times (-2) + 6 =

66. −8+(25−7)÷3=-8 + (25 - 7) \div 3 =

67. (−9)×2−(−15)÷5=(-9) \times 2 - (-15) \div 5 =

68. −6+7×(3−8)=-6 + 7 \times (3 - 8) =

69. (12−20)÷(−4)+(−3)=(12 - 20) \div (-4) + (-3) =

70. −5×4+(−24)÷6−2=-5 \times 4 + (-24) \div 6 - 2 =

四、含乘方的有理数混合运算(共20题,每题1分,共20分)

请先算乘方,再算乘除,最后算加减,直接写出各题的得数:

71. (−2)3+5=(-2)^3 + 5 =

72. (−3)2−4=(-3)^2 - 4 =

73. −22+6=-2^2 + 6 =

74. (−4)2÷8=(-4)^2 \div 8 =

75. −33+20=-3^3 + 20 =

76. (−5)2×2=(-5)^2 \times 2 =

77. 23−(−3)2=2^3 - (-3)^2 =

78. (−1)10+7=(-1)^{10} + 7 =

79. −42+32=-4^2 + 3^2 =

80. (−6)2÷9−3=(-6)^2 \div 9 - 3 =

81. −52+(−2)3=-5^2 + (-2)^3 =

82. (−3)3+(−2)2=(-3)^3 + (-2)^2 =

83. 42−(−2)5=4^2 - (-2)^5 =

84. −72+49=-7^2 + 49 =

85. (−8)2÷(−4)=(-8)^2 \div (-4) =

86. −24+33=-2^4 + 3^3 =

87. (−3)4÷9−2=(-3)^4 \div 9 - 2 =

88. 53÷(−25)=5^3 \div (-25) =

89. −63÷36+1=-6^3 \div 36 + 1 =

90. (−10)2×(−2)+3=(-10)^2 \times (-2) + 3 =


五、有理数混合运算综合(共10题,每题1分,共10分)

请按有理数混合运算顺序,写出必要的计算步骤,直接写出每题结果:

91. −22+(−3)3÷9×2=-2^2 + (-3)^3 \div 9 \times 2 =

92. [(−5)−(−8)]×(−2)2=[(-5) - (-8)] \times (-2)^2 =

93. −4×[3−(−5)]÷8=-4 \times [3 - (-5)] \div 8 =

94. (−9)×(−2)−33(−3)2=\frac{(-9) \times (-2) - 3^3}{(-3)^2} =

95. −14−3×(−2)3÷4=-1^4 - 3 \times (-2)^3 \div 4 =

96. (5−3×(−2))÷11+4=(5 - 3 \times (-2)) \div 11 + 4 =

97. (−2)3+(−3)2×2−(−4)=(-2)^3 + (-3)^2 \times 2 - (-4) =

98. [2−(−3)2]÷(−7)+(−1)5=[2 - (-3)^2] \div (-7) + (-1)^5 =

99. (−6)2÷12−(−2)3=(-6)^2 \div 12 - (-2)^3 =

100. −34÷27+[(−2)3−(−5)]×2=-3^4 \div 27 + [(-2)^3 - (-5)] \times 2 =