小学四年级学习数学的时候，小数乘整数的计算是一个非常重要的知识点。在这个知识点中，我们需要将小数和整数进行相乘，并将结果写成小数的形式。下面是100道小数乘整数的练习题，帮助大家更好地掌握这个知识点：

1. 0.3 × 4 =

2. 0.5 × 6 =

3. 0.7 × 2 =

4. 0.8 × 5 =

5. 0.2 × 9 =

6. 0.6 × 3 =

7. 0.9 × 1 =

8. 0.4 × 7 =

9. 0.1 × 8 =

10. 0.3 × 10 =

11. 0.5 × 12 =

12. 0.2 × 15 =

13. 0.7 × 6 =

14. 0.9 × 4 =

15. 0.6 × 8 =

16. 0.8 × 3 =

17. 0.4 × 9 =

18. 0.1 × 7 =

19. 0.2 × 11 =

20. 0.3 × 14 =

21. 0.5 × 18 =

22. 0.7 × 10 =

23. 0.8 × 6 =

24. 0.9 × 5 =

25. 0.6 × 12 =

26. 0.4 × 15 =

27. 0.1 × 9 =

28. 0.2 × 13 =

29. 0.3 × 16 =

30. 0.5 × 20 =

31. 0.7 × 14 =

32. 0.8 × 8 =

33. 0.6 × 16 =

34. 0.9 × 7 =

35. 0.4 × 12 =

36. 0.1 × 10 =

37. 0.2 × 15 =

38. 0.3 × 18 =

39. 0.5 × 25 =

40. 0.7 × 20 =

41. 0.8 × 10 =

42. 0.9 × 9 =

43. 0.6 × 18 =

44. 0.4 × 20 =

45. 0.1 × 12 =

46. 0.2 × 17 =

47. 0.3 × 20 =

48. 0.5 × 30 =

49. 0.7 × 25 =

50. 0.8 × 12 =

51. 0.9 × 11 =

52. 0.6 × 24 =

53. 0.4 × 25 =

54. 0.1 × 15 =

55. 0.2 × 19 =

56. 0.3 × 22 =

57. 0.5 × 35 =

58. 0.7 × 30 =

59. 0.8 × 15 =

60. 0.9 × 13 =

61. 0.6 × 30 =

62. 0.4 × 35 =

63. 0.1 × 18 =

64. 0.2 × 23 =

65. 0.3 × 26 =

66. 0.5 × 40 =

67. 0.7 × 35 =

68. 0.8 × 20 =

69. 0.9 × 17 =

70. 0.6 × 36 =

71. 0.4 × 40 =

72. 0.1 × 21 =

73. 0.2 × 27 =

74. 0.3 × 30 =

75. 0.5 × 45 =

76. 0.7 × 40 =

77. 0.8 × 25 =

78. 0.9 × 19 =

79. 0.6 × 42 =

80. 0.4 × 50 =

81. 0.1 × 24 =

82. 0.2 × 29 =

83. 0.3 × 33 =

84. 0.5 × 50 =

85. 0.7 × 45 =

86. 0.8 × 30 =

87. 0.9 × 23 =

88. 0.6 × 48 =

89. 0.4 × 55 =

90. 0.1 × 27 =

91. 0.2 × 33 =

92. 0.3 × 36 =

93. 0.5 × 55 =

94. 0.7 × 50 =

95. 0.8 × 35 =

96. 0.9 × 29 =

97. 0.6 × 54 =

98. 0.4 × 60 =

99. 0.1 × 30 =

100. 0.2 × 37 =

以上100道小数乘整数的题目，可以帮助小学四年级的学生更好地掌握小数乘整数的计算方法。在做这些题目时，同学们要认真思考，仔细计算，尽可能地避免出错，以达到更好的练习效果。