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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 279 · 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. 1.93³ =
  2. 2.16³ =
  3. 3.29³ =
  4. 4.54³ =
  5. 5.62³ =
  6. 6.91³ =
  7. 7.19³ =
  8. 8.12³ =
  9. 9.26³ =
  10. 10.82³ =
  11. 11.81³ =
  12. 12.58³ =
  13. 13.71³ =
  14. 14.92³ =
  15. 15.27³ =
  16. 16.94³ =
  17. 17.74³ =
  18. 18.84³ =
  19. 19.34³ =
  20. 20.96³ =
  21. 21.42³ =
  22. 22.51³ =
  23. 23.27³ =
  24. 24.39³ =
  25. 25.45³ =
  26. 26.74³ =
  27. 27.19³ =
  28. 28.39³ =
  29. 29.81³ =
  30. 30.53³ =
  31. 31.66³ =
  32. 32.97³ =
  33. 33.53³ =
  34. 34.93³ =
  35. 35.91³ =
  36. 36.79³ =
  37. 37.23³ =
  38. 38.25³ =
  39. 39.89³ =
  40. 40.78³ =

Answer key

  1. 804357
  2. 4096
  3. 24389
  4. 157464
  5. 238328
  6. 753571
  7. 6859
  8. 1728
  9. 17576
  10. 551368
  11. 531441
  12. 195112
  13. 357911
  14. 778688
  15. 19683
  16. 830584
  17. 405224
  18. 592704
  19. 39304
  20. 884736
  21. 74088
  22. 132651
  23. 19683
  24. 59319
  25. 91125
  26. 405224
  27. 6859
  28. 59319
  29. 531441
  30. 148877
  31. 287496
  32. 912673
  33. 148877
  34. 804357
  35. 753571
  36. 493039
  37. 12167
  38. 15625
  39. 704969
  40. 474552

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