在小学六年级阶段，数学学习的重点逐渐从基础运算转向更复杂的计算和逻辑思维训练。而口算能力是数学学习中非常关键的一部分，它不仅能够提高学生的计算速度，还能增强对数字的敏感度和理解力。为了帮助学生更好地掌握这一技能，下面整理了100道适合六年级学生的数学口算题，并附有详细答案，方便练习与自查。
一、加减法口算题（20道）
1. 35 + 48 =
2. 76 - 29 =
3. 124 + 37 =
4. 85 - 46 =
5. 203 + 58 =
6. 150 - 75 =
7. 327 + 18 =
8. 400 - 199 =
9. 63 + 78 =
10. 100 - 37 =
11. 156 + 44 =
12. 230 - 98 =
13. 89 + 67 =
14. 120 - 55 =
15. 200 + 89 =
16. 300 - 145 =
17. 178 + 22 =
18. 250 - 125 =
19. 99 + 101 =
20. 400 - 300 =
二、乘除法口算题（30道）
21. 12 × 5 =
22. 18 ÷ 6 =
23. 25 × 4 =
24. 48 ÷ 8 =
25. 15 × 7 =
26. 63 ÷ 9 =
27. 20 × 6 =
28. 81 ÷ 9 =
29. 11 × 8 =
30. 56 ÷ 7 =
31. 13 × 4 =
32. 72 ÷ 8 =
33. 16 × 3 =
34. 90 ÷ 10 =
35. 14 × 5 =
36. 100 ÷ 25 =
37. 17 × 2 =
38. 60 ÷ 12 =
39. 19 × 3 =
40. 80 ÷ 16 =
41. 21 × 4 =
42. 45 ÷ 5 =
43. 22 × 5 =
44. 70 ÷ 14 =
45. 24 × 3 =
46. 96 ÷ 12 =
47. 18 × 6 =
48. 100 ÷ 20 =
49. 15 × 6 =
50. 84 ÷ 12 =
三、小数与分数口算题（30道）
51. 0.5 + 0.3 =
52. 1.2 - 0.7 =
53. 0.6 × 2 =
54. 1.8 ÷ 3 =
55. 0.25 + 0.75 =
56. 2.5 - 1.4 =
57. 0.4 × 5 =
58. 3.6 ÷ 6 =
59. 1/2 + 1/4 =
60. 3/4 - 1/2 =
61. 2/3 × 3 =
62. 5/6 ÷ 5 =
63. 0.75 + 0.25 =
64. 2.4 - 1.2 =
65. 0.8 × 3 =
66. 4.8 ÷ 2 =
67. 1/3 + 1/6 =
68. 3/5 - 1/5 =
69. 1/2 × 2 =
70. 1.5 ÷ 0.5 =
71. 0.9 + 0.1 =
72. 2.7 - 1.5 =
73. 0.6 × 4 =
74. 5.4 ÷ 6 =
75. 2/5 + 3/5 =
76. 5/8 - 1/8 =
77. 3/4 × 2 =
78. 1.2 ÷ 0.6 =
79. 0.2 + 0.8 =
80. 3.6 - 2.4 =
四、综合运算题（20道）
81. 12 + 8 × 2 =
82. (15 - 5) × 3 =
83. 40 ÷ (5 + 5) =
84. 25 + 3 × 4 =
85. 100 - 10 × 5 =
86. (12 + 8) ÷ 5 =
87. 15 × 2 + 10 =
88. 30 ÷ 6 + 5 =
89. 20 × 3 - 25 =
90. 45 ÷ 9 + 7 =
91. 18 + 4 × 3 =
92. (10 + 5) × 2 =
93. 100 ÷ 10 + 10 =
94. 12 × 4 - 30 =
95. 20 + 5 × 3 =
96. 60 ÷ (10 - 5) =
97. 25 + 5 × 2 =
98. (8 + 2) × 4 =
99. 36 ÷ 6 + 8 =
100. 15 × 3 - 20 =
答案部分（供参考）
1. 83
2. 47
3. 161
4. 39
5. 261
6. 75
7. 345
8. 201
9. 141
10. 63
11. 200
12. 132
13. 156
14. 65
15. 289
16. 155
17. 200
18. 125
19. 200
20. 100
21. 60
22. 3
23. 100
24. 6
25. 105
26. 7
27. 120
28. 9
29. 88
30. 8
31. 52
32. 9
33. 48
34. 9
35. 70
36. 4
37. 34
38. 5
39. 57
40. 5
41. 84
42. 9
43. 110
44. 5
45. 72
46. 8
47. 108
48. 5
49. 90
50. 7
51. 0.8
52. 0.5
53. 1.2
54. 0.6
55. 1
56. 1.1
57. 2
58. 0.6
59. 3/4
60. 1/4
61. 2
62. 1/6
63. 1
64. 1.2
65. 2.4
66. 2.4
67. 1/2
68. 2/5
69. 1
70. 3
71. 1
72. 1.2
73. 2.4
74. 0.9
75. 1
76. 4/8（或1/2）
77. 1.5
78. 2
79. 1
80. 1.2
81. 28
82. 30
83. 4
84. 37
85. 50
86. 4
87. 40
88. 10
89. 35
90. 12
91. 30
92. 30
93. 20
94. 18
95. 35
96. 12
97. 35
98. 40
99. 14
100. 25
通过反复练习这些题目，可以帮助六年级学生提升口算速度和准确率，为后续更复杂的数学学习打下坚实的基础。建议每天练习10-20道，逐步提高难度，同时注意总结错误原因，不断改进。
