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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 668 · 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. 1.72³ =
  2. 2.66³ =
  3. 3.18³ =
  4. 4.61³ =
  5. 5.71³ =
  6. 6.96³ =
  7. 7.91³ =
  8. 8.85³ =
  9. 9.58³ =
  10. 10.91³ =
  11. 11.42³ =
  12. 12.23³ =
  13. 13.99³ =
  14. 14.29³ =
  15. 15.71³ =
  16. 16.16³ =
  17. 17.12³ =
  18. 18.68³ =
  19. 19.49³ =
  20. 20.34³ =
  21. 21.18³ =
  22. 22.13³ =
  23. 23.81³ =
  24. 24.68³ =
  25. 25.31³ =
  26. 26.24³ =
  27. 27.84³ =
  28. 28.55³ =
  29. 29.72³ =
  30. 30.94³ =
  31. 31.28³ =
  32. 32.39³ =
  33. 33.51³ =
  34. 34.83³ =
  35. 35.82³ =
  36. 36.56³ =
  37. 37.92³ =
  38. 38.81³ =
  39. 39.13³ =
  40. 40.28³ =

Answer key

  1. 373248
  2. 287496
  3. 5832
  4. 226981
  5. 357911
  6. 884736
  7. 753571
  8. 614125
  9. 195112
  10. 753571
  11. 74088
  12. 12167
  13. 970299
  14. 24389
  15. 357911
  16. 4096
  17. 1728
  18. 314432
  19. 117649
  20. 39304
  21. 5832
  22. 2197
  23. 531441
  24. 314432
  25. 29791
  26. 13824
  27. 592704
  28. 166375
  29. 373248
  30. 830584
  31. 21952
  32. 59319
  33. 132651
  34. 571787
  35. 551368
  36. 175616
  37. 778688
  38. 531441
  39. 2197
  40. 21952

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