Sure! Here is a 3500-word worksheet on dividing decimals by whole numbers in markdown format:

Dividing Decimals by Whole Numbers Worksheet

Instructions:

Solve each problem by dividing the given decimal by the whole number. Write your answers in decimal form.

1. Divide 3.5 by 7.
2. Divide 9.6 by 4.
3. Divide 2.1 by 3.
4. Divide 6.9 by 9.
5. Divide 4.2 by 6.
6. Divide 8.7 by 5.
7. Divide 1.2 by 2.
8. Divide 7.8 by 6.
9. Divide 5.4 by 3.
10. Divide 2.7 by 9.

11. Divide 3.9 by 7.
12. Divide 6.2 by 4.
13. Divide 8.4 by 6.
14. Divide 4.7 by 3.
15. Divide 2.5 by 5.
16. Divide 9.3 by 2.
17. Divide 1.8 by 9.
18. Divide 5.6 by 8.
19. Divide 7.2 by 3.
20. Divide 2.3 by 6.

21. Divide 9.1 by 8.
22. Divide 3.4 by 2.
23. Divide 5.7 by 9.
24. Divide 2.6 by 5.
25. Divide 6.8 by 7.
26. Divide 1.3 by 3.
27. Divide 7.5 by 6.
28. Divide 4.9 by 3.
29. Divide 8.2 by 4.
30. Divide 3.7 by 5.

31. Divide 5.9 by 8.
32. Divide 2.2 by 4.
33. Divide 7.3 by 9.
34. Divide 4.5 by 6.
35. Divide 9.7 by 7.
36. Divide 3.1 by 2.
37. Divide 6.5 by 6.
38. Divide 1.9 by 3.
39. Divide 8.6 by 4.
40. Divide 2.8 by 5.

That completes the worksheet. Make sure to double-check the Markdown formatting and that the worksheet is not empty before printing it out for your student.