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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 327 · 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. 1.65³ =
  2. 2.45³ =
  3. 3.26³ =
  4. 4.89³ =
  5. 5.18³ =
  6. 6.57³ =
  7. 7.97³ =
  8. 8.39³ =
  9. 9.11³ =
  10. 10.25³ =
  11. 11.59³ =
  12. 12.43³ =
  13. 13.82³ =
  14. 14.57³ =
  15. 15.74³ =
  16. 16.93³ =
  17. 17.46³ =
  18. 18.68³ =
  19. 19.41³ =
  20. 20.27³ =
  21. 21.42³ =
  22. 22.61³ =
  23. 23.32³ =
  24. 24.88³ =
  25. 25.93³ =
  26. 26.45³ =
  27. 27.16³ =
  28. 28.61³ =
  29. 29.61³ =
  30. 30.71³ =
  31. 31.11³ =
  32. 32.49³ =
  33. 33.55³ =
  34. 34.59³ =
  35. 35.95³ =
  36. 36.83³ =
  37. 37.86³ =
  38. 38.11³ =
  39. 39.71³ =
  40. 40.39³ =

Answer key

  1. 274625
  2. 91125
  3. 17576
  4. 704969
  5. 5832
  6. 185193
  7. 912673
  8. 59319
  9. 1331
  10. 15625
  11. 205379
  12. 79507
  13. 551368
  14. 185193
  15. 405224
  16. 804357
  17. 97336
  18. 314432
  19. 68921
  20. 19683
  21. 74088
  22. 226981
  23. 32768
  24. 681472
  25. 804357
  26. 91125
  27. 4096
  28. 226981
  29. 226981
  30. 357911
  31. 1331
  32. 117649
  33. 166375
  34. 205379
  35. 857375
  36. 571787
  37. 636056
  38. 1331
  39. 357911
  40. 59319

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