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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 885 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.18³ =
  2. 2.91³ =
  3. 3.95³ =
  4. 4.64³ =
  5. 5.19³ =
  6. 6.55³ =
  7. 7.57³ =
  8. 8.69³ =
  9. 9.89³ =
  10. 10.44³ =
  11. 11.39³ =
  12. 12.28³ =
  13. 13.66³ =
  14. 14.93³ =
  15. 15.28³ =
  16. 16.93³ =
  17. 17.71³ =
  18. 18.43³ =
  19. 19.92³ =
  20. 20.61³ =
  21. 21.59³ =
  22. 22.99³ =
  23. 23.91³ =
  24. 24.19³ =
  25. 25.39³ =
  26. 26.22³ =
  27. 27.61³ =
  28. 28.43³ =
  29. 29.31³ =
  30. 30.78³ =
  31. 31.69³ =
  32. 32.93³ =
  33. 33.31³ =
  34. 34.68³ =
  35. 35.21³ =
  36. 36.88³ =
  37. 37.93³ =
  38. 38.49³ =
  39. 39.91³ =
  40. 40.64³ =

Answer key

  1. 5832
  2. 753571
  3. 857375
  4. 262144
  5. 6859
  6. 166375
  7. 185193
  8. 328509
  9. 704969
  10. 85184
  11. 59319
  12. 21952
  13. 287496
  14. 804357
  15. 21952
  16. 804357
  17. 357911
  18. 79507
  19. 778688
  20. 226981
  21. 205379
  22. 970299
  23. 753571
  24. 6859
  25. 59319
  26. 10648
  27. 226981
  28. 79507
  29. 29791
  30. 474552
  31. 328509
  32. 804357
  33. 29791
  34. 314432
  35. 9261
  36. 681472
  37. 804357
  38. 117649
  39. 753571
  40. 262144

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