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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 644 · 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. 2.83³ =
  3. 3.61³ =
  4. 4.15³ =
  5. 5.93³ =
  6. 6.29³ =
  7. 7.57³ =
  8. 8.56³ =
  9. 9.34³ =
  10. 10.37³ =
  11. 11.32³ =
  12. 12.17³ =
  13. 13.34³ =
  14. 14.39³ =
  15. 15.58³ =
  16. 16.91³ =
  17. 17.89³ =
  18. 18.82³ =
  19. 19.23³ =
  20. 20.54³ =
  21. 21.33³ =
  22. 22.25³ =
  23. 23.61³ =
  24. 24.92³ =
  25. 25.31³ =
  26. 26.66³ =
  27. 27.84³ =
  28. 28.96³ =
  29. 29.46³ =
  30. 30.21³ =
  31. 31.93³ =
  32. 32.74³ =
  33. 33.26³ =
  34. 34.97³ =
  35. 35.54³ =
  36. 36.81³ =
  37. 37.31³ =
  38. 38.16³ =
  39. 39.11³ =
  40. 40.65³ =

Answer key

  1. 274625
  2. 571787
  3. 226981
  4. 3375
  5. 804357
  6. 24389
  7. 185193
  8. 175616
  9. 39304
  10. 50653
  11. 32768
  12. 4913
  13. 39304
  14. 59319
  15. 195112
  16. 753571
  17. 704969
  18. 551368
  19. 12167
  20. 157464
  21. 35937
  22. 15625
  23. 226981
  24. 778688
  25. 29791
  26. 287496
  27. 592704
  28. 884736
  29. 97336
  30. 9261
  31. 804357
  32. 405224
  33. 17576
  34. 912673
  35. 157464
  36. 531441
  37. 29791
  38. 4096
  39. 1331
  40. 274625

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