【小学三年级下册数学口算题100道】在小学阶段，数学是培养孩子逻辑思维和计算能力的重要科目。尤其是三年级，学生正处于从基础运算向更复杂数学知识过渡的关键时期。为了帮助孩子们巩固所学内容，提高计算速度和准确性，下面整理了一份适合三年级下册学生的口算题100道，涵盖加减乘除等基本运算，适合日常练习或课后复习。
一、加法练习（共20题）
1. 34 + 25 =
2. 67 + 13 =
3. 89 + 11 =
4. 45 + 35 =
5. 28 + 42 =
6. 56 + 34 =
7. 72 + 28 =
8. 19 + 81 =
9. 63 + 27 =
10. 44 + 56 =
11. 37 + 43 =
12. 58 + 22 =
13. 75 + 25 =
14. 16 + 84 =
15. 23 + 77 =
16. 90 + 10 =
17. 31 + 69 =
18. 40 + 60 =
19. 55 + 45 =
20. 80 + 20 =
二、减法练习（共20题）
21. 98 - 45 =
22. 76 - 34 =
23. 65 - 25 =
24. 89 - 19 =
25. 57 - 27 =
26. 43 - 13 =
27. 72 - 32 =
28. 95 - 55 =
29. 64 - 34 =
30. 88 - 48 =
31. 50 - 20 =
32. 70 - 30 =
33. 90 - 60 =
34. 45 - 15 =
35. 66 - 26 =
36. 87 - 57 =
37. 39 - 19 =
38. 53 - 33 =
39. 78 - 48 =
40. 62 - 22 =
三、乘法练习（共30题）
41. 3 × 4 =
42. 5 × 6 =
43. 7 × 8 =
44. 2 × 9 =
45. 6 × 7 =
46. 4 × 5 =
47. 8 × 3 =
48. 9 × 2 =
49. 5 × 5 =
50. 7 × 4 =
51. 6 × 3 =
52. 8 × 5 =
53. 4 × 7 =
54. 9 × 4 =
55. 2 × 8 =
56. 3 × 7 =
57. 5 × 8 =
58. 7 × 6 =
59. 6 × 4 =
60. 8 × 2 =
61. 9 × 3 =
62. 3 × 6 =
63. 4 × 8 =
64. 5 × 9 =
65. 7 × 2 =
66. 6 × 9 =
67. 8 × 4 =
68. 9 × 5 =
69. 2 × 7 =
70. 3 × 5 =
四、除法练习（共20题）
71. 12 ÷ 3 =
72. 18 ÷ 6 =
73. 24 ÷ 4 =
74. 16 ÷ 8 =
75. 15 ÷ 5 =
76. 20 ÷ 4 =
77. 28 ÷ 7 =
78. 30 ÷ 5 =
79. 12 ÷ 2 =
80. 16 ÷ 4 =
81. 25 ÷ 5 =
82. 18 ÷ 3 =
83. 21 ÷ 7 =
84. 27 ÷ 9 =
85. 36 ÷ 6 =
86. 40 ÷ 8 =
87. 14 ÷ 7 =
88. 10 ÷ 5 =
89. 20 ÷ 2 =
90. 35 ÷ 5 =
五、综合练习（共10题）
91. 32 + 18 =
92. 60 - 25 =
93. 4 × 7 =
94. 45 ÷ 5 =
95. 56 + 34 =
96. 72 - 40 =
97. 8 × 5 =
98. 36 ÷ 6 =
99. 29 + 11 =
100. 80 ÷ 10 =
这份口算题集不仅有助于提高孩子的计算能力，还能增强他们对数学的兴趣。家长可以在家中陪伴孩子一起练习，或者作为老师布置的课后作业。建议每天完成10-20道题，坚持练习，逐步提升计算速度和准确率。
希望这份练习能为孩子们的学习带来帮助！
