【小学三年级下册数学口算题100题】在小学三年级的学习过程中，数学的口算能力是培养学生计算速度和准确率的重要基础。为了帮助学生更好地掌握本学期所学的数学知识，下面整理了一份适合三年级下册学生的100道口算题，内容涵盖加法、减法、乘法、除法以及简单的混合运算，适合课后练习或课堂测试使用。

一、加法练习（共20题）

1. 34 + 25 =

2. 67 + 12 =

3. 89 + 11 =

4. 45 + 35 =

5. 28 + 17 =

6. 56 + 34 =

7. 72 + 18 =

8. 19 + 21 =

9. 43 + 37 =

10. 65 + 25 =

11. 12 + 88 =

12. 30 + 40 =

13. 55 + 45 =

14. 23 + 37 =

15. 76 + 24 =

16. 15 + 85 =

17. 39 + 41 =

18. 50 + 50 =

19. 63 + 37 =

20. 22 + 78 =

二、减法练习（共20题）

21. 85 - 35 =

22. 76 - 26 =

23. 90 - 40 =

24. 63 - 13 =

25. 54 - 24 =

26. 88 - 18 =

27. 72 - 32 =

28. 60 - 20 =

29. 45 - 15 =

30. 99 - 49 =

31. 77 - 37 =

32. 56 - 26 =

33. 84 - 44 =

34. 62 - 12 =

35. 95 - 55 =

36. 33 - 13 =

37. 47 - 27 =

38. 58 - 28 =

39. 71 - 31 =

40. 83 - 43 =

三、乘法练习（共30题）

41. 5 × 6 =

42. 7 × 8 =

43. 4 × 9 =

44. 3 × 7 =

45. 6 × 4 =

46. 8 × 5 =

47. 9 × 3 =

48. 2 × 8 =

49. 7 × 7 =

50. 5 × 5 =

51. 6 × 6 =

52. 3 × 8 =

53. 4 × 7 =

54. 9 × 4 =

55. 2 × 9 =

56. 7 × 3 =

57. 8 × 6 =

58. 5 × 8 =

59. 4 × 5 =

60. 6 × 3 =

61. 9 × 2 =

62. 7 × 4 =

63. 8 × 2 =

64. 3 × 6 =

65. 5 × 7 =

66. 2 × 7 =

67. 4 × 6 =

68. 6 × 9 =

69. 7 × 5 =

70. 8 × 7 =

四、除法练习（共20题）

71. 24 ÷ 6 =

72. 36 ÷ 4 =

73. 40 ÷ 5 =

74. 18 ÷ 3 =

75. 30 ÷ 5 =

76. 16 ÷ 2 =

77. 20 ÷ 4 =

78. 28 ÷ 7 =

79. 12 ÷ 6 =

80. 27 ÷ 3 =

81. 32 ÷ 8 =

82. 15 ÷ 5 =

83. 10 ÷ 2 =

84. 45 ÷ 9 =

85. 42 ÷ 6 =

86. 35 ÷ 5 =

87. 21 ÷ 7 =

88. 14 ÷ 2 =

89. 25 ÷ 5 =

90. 18 ÷ 2 =

五、综合运算（共10题）

91. 12 + 18 - 10 =

92. 25 - 15 + 10 =

93. 6 × 4 + 8 =

94. 9 × 2 - 10 =

95. 30 ÷ 5 + 7 =

96. 40 ÷ 8 × 3 =

97. 15 + 25 - 10 =

98. 7 × 3 + 5 =

99. 16 ÷ 4 + 9 =

100. 5 × 5 - 10 =

通过每天坚持做几道口算题，孩子们不仅能提高计算速度，还能增强对数字的敏感度和逻辑思维能力。家长和老师可以鼓励孩子在规定时间内完成这些题目，逐步提升他们的数学能力。希望这份练习题能为孩子们的学习带来帮助！