小学四年级一元一次方程50道

以下是一些小学四年级一元一次方程的练习题，共50道：

1. 3x + 4 = 19

2. 2x 5 = 13

3. 5x + 2 = 17

4. 4x 3 = 19

5. 3x + 1 = 16

6. 2x 7 = 9

7. 5x 4 = 21

8. 4x + 3 = 19

9. 3x 2 = 14

10. 2x + 6 = 20

11. 5x 5 = 20

12. 4x + 1 = 19

13. 3x 6 = 9

14. 2x + 2 = 16

15. 5x + 3 = 22

16. 4x 2 = 18

17. 3x + 7 = 24

18. 2x 3 = 13

19. 5x + 1 = 21

20. 4x 4 = 16

21. 3x + 5 = 20

22. 2x 1 = 11

23. 5x 2 = 23

24. 4x + 2 = 20

25. 3x 5 = 14

26. 2x + 8 = 24

27. 5x + 4 = 25

28. 4x 3 = 17

29. 3x + 6 = 23

30. 2x 2 = 12

31. 5x 3 = 22

32. 4x + 3 = 21

33. 3x + 7 = 26

34. 2x 1 = 10

35. 5x + 2 = 24

36. 4x 4 = 18

37. 3x + 8 = 27

38. 2x 3 = 11

39. 5x + 3 = 25

40. 4x 5 = 19

41. 3x + 9 = 28

42. 2x 2 = 10

43. 5x + 4 = 27

44. 4x 6 = 18

45. 3x + 10 = 29

46. 2x 3 = 12

47. 5x + 5 = 28

48. 4x 7 = 19

49. 3x + 11 = 30

50. 2x 4 = 13

解答这些方程，可以帮助学生巩固一元一次方程的解法，提高他们的数学能力。