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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 33 · 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. 1.58³ =
  2. 2.82³ =
  3. 3.28³ =
  4. 4.74³ =
  5. 5.38³ =
  6. 6.22³ =
  7. 7.32³ =
  8. 8.13³ =
  9. 9.86³ =
  10. 10.72³ =
  11. 11.21³ =
  12. 12.82³ =
  13. 13.63³ =
  14. 14.51³ =
  15. 15.52³ =
  16. 16.36³ =
  17. 17.86³ =
  18. 18.36³ =
  19. 19.86³ =
  20. 20.47³ =
  21. 21.93³ =
  22. 22.45³ =
  23. 23.23³ =
  24. 24.12³ =
  25. 25.92³ =
  26. 26.46³ =
  27. 27.91³ =
  28. 28.68³ =
  29. 29.31³ =
  30. 30.27³ =
  31. 31.85³ =
  32. 32.26³ =
  33. 33.66³ =
  34. 34.61³ =
  35. 35.65³ =
  36. 36.49³ =
  37. 37.53³ =
  38. 38.71³ =
  39. 39.21³ =
  40. 40.81³ =

Answer key

  1. 195112
  2. 551368
  3. 21952
  4. 405224
  5. 54872
  6. 10648
  7. 32768
  8. 2197
  9. 636056
  10. 373248
  11. 9261
  12. 551368
  13. 250047
  14. 132651
  15. 140608
  16. 46656
  17. 636056
  18. 46656
  19. 636056
  20. 103823
  21. 804357
  22. 91125
  23. 12167
  24. 1728
  25. 778688
  26. 97336
  27. 753571
  28. 314432
  29. 29791
  30. 19683
  31. 614125
  32. 17576
  33. 287496
  34. 226981
  35. 274625
  36. 117649
  37. 148877
  38. 357911
  39. 9261
  40. 531441

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