Number puzzle

Edit Answers
1234567891011121314151617181920212223242526272829303132333435363738
Across
  1. 6. Find the 100th term of the arithmetic sequence: 12, 25, 38, …
  2. 8. Find the sum of the first 120 terms of 12, 27, 42, …
  3. 9. Find the midpoint of (4800, 9200) and (9600, 18400)
  4. 10. Find the 300th term of 5, 17, 29, …
  5. 11. Find the sum of the first 150 terms of 8, 23, 38, …
  6. 13. Find the sum of the first 180 terms of 10, 25, 40, …
  7. 15. Find the 150th term of 6, 14, 22, …
  8. 17. Find the sum of the first 250 terms of 11, 19, 27, …
  9. 19. Find the 20th term of geometric sequence: 3, 6, 12, …
  10. 20. Find the sum of the first 150 terms of 7, 15, 23, …
  11. 22. Find the 200th term of the arithmetic sequence: 32, 48, 64, …
  12. 23. Find the midpoint of (1250, 5600) and (4750, 10400)
  13. 24. Find the sum of the first 8 terms of geometric sequence: 3, 9, 27, …
  14. 27. Find the sum of the first 10 terms of geometric sequence: 4, 12, 36, …
  15. 29. Find the sum of the first 100 terms of 3, 10, 17, …
  16. 32. Find the midpoint of (1200, 3400) and (4500, 8700)
  17. 34. Find the 140th term of 6, 21, 36, …
  18. 35. Find the 12th term of geometric sequence: 5, 15, 45, …
  19. 37. Find the sum of the first 15 terms of geometric sequence: 2, 6, 18, …
  20. 38. Find the 18th term of geometric sequence: 4, 12, 36, …
Down
  1. 1. Find the sum of the first 14 terms of geometric sequence: 5, 15, 45, …
  2. 2. Find the sum of the first 200 terms of 9, 21, 33, …
  3. 3. Find the sum of the first 180 terms of 20, 35, 50, …
  4. 4. Find the midpoint of (1200, 4800) and (6800, 15200)
  5. 5. Find the midpoint of (1100, 2100) and (9100, 10100)
  6. 7. Find the 250th term of 7, 20, 33, …
  7. 12. Find the midpoint of (2300, 7400) and (6700, 15800)
  8. 14. Find the 15th term of geometric sequence: 7, 21, 63, …
  9. 16. Find the 120th term of 5, 18, 31, …
  10. 18. Find the 10th term of geometric sequence: 2, 10, 50, …
  11. 20. Find the 80th term of 15, 28, 41, …
  12. 21. Find the midpoint of (5000, 9000) and (15000, 21000)
  13. 24. Find the sum of the first 120 terms of 12, 27, 42, …
  14. 25. Find the midpoint of (750, 1800) and (6750, 11800)
  15. 26. Find the midpoint of (3500, 6700) and (11500, 18700)
  16. 28. Find the 220th term of 13, 28, 43, …
  17. 30. Find the midpoint of (2400, 3600) and (10400, 13600)
  18. 31. Find the sum of the first 12 terms of geometric sequence: 6, 18, 54, …
  19. 33. Find the 180th term of 11, 26, 41, …
  20. 36. Find the sum of the first 100 terms of 14, 29, 44, …