1. 25 × 36 = 900

2. 125 × 8 = 1000

3. 75 × 4 = 300

4. 25 × 16 = 400

5. 125 × 16 = 2000

6. 25 × 48 = 1200

7. 125 × 24 = 3000

8. 75 × 8 = 600

9. 25 × 8 = 200

10. 125 × 4 = 500

11. 75 × 16 = 1200

12. 25 × 64 = 1600

13. 125 × 32 = 4000

14. 75 × 32 = 2400

15. 25 × 96 = 2400

16. 125 × 48 = 6000

17. 75 × 64 = 4800

18. 25 × 128 = 3200

19. 125 × 64 = 8000

20. 75 × 128 = 9600

21. 25 × 192 = 4800

22. 125 × 96 = 12000

23. 75 × 256 = 19200

24. 25 × 384 = 9600

25. 125 × 192 = 24000

26. 75 × 512 = 38400

27. 25 × 768 = 19200

28. 125 × 384 = 48000

29. 75 × 1024 = 76800

30. 25 × 1536 = 38400

31. 125 × 768 = 96000

32. 75 × 2048 = 153600

33. 25 × 3072 = 76800

34. 125 × 1536 = 192000

35. 75 × 4096 = 307200

36. 25 × 6144 = 153600

37. 125 × 3072 = 384000

38. 75 × 8192 = 614400

39. 25 × 12288 = 307200

40. 125 × 6144 = 768000

41. 75 × 16384 = 1228800

42. 25 × 24576 = 614400

43. 125 × 12288 = 1536000

44. 75 × 32768 = 2457600

45. 25 × 49152 = 1228800

46. 125 × 24576 = 3072000

47. 75 × 65536 = 4915200

48. 25 × 98304 = 2457600

49. 125 × 49152 = 6144000

50. 75 × 131072 = 9830400

这些题目涵盖了多种简便运算技巧，如利用乘法分配律、结合律等。希望同学们能够通过练习，熟练掌握简便运算的方法，提升自己的数学能力。