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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 549 · 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. 1.14³ =
  2. 2.84³ =
  3. 3.43³ =
  4. 4.88³ =
  5. 5.48³ =
  6. 6.35³ =
  7. 7.41³ =
  8. 8.59³ =
  9. 9.29³ =
  10. 10.82³ =
  11. 11.25³ =
  12. 12.91³ =
  13. 13.29³ =
  14. 14.27³ =
  15. 15.72³ =
  16. 16.31³ =
  17. 17.95³ =
  18. 18.47³ =
  19. 19.34³ =
  20. 20.87³ =
  21. 21.31³ =
  22. 22.86³ =
  23. 23.33³ =
  24. 24.57³ =
  25. 25.66³ =
  26. 26.12³ =
  27. 27.73³ =
  28. 28.37³ =
  29. 29.79³ =
  30. 30.17³ =
  31. 31.27³ =
  32. 32.62³ =
  33. 33.46³ =
  34. 34.32³ =
  35. 35.76³ =
  36. 36.26³ =
  37. 37.42³ =
  38. 38.75³ =
  39. 39.99³ =
  40. 40.89³ =

Answer key

  1. 2744
  2. 592704
  3. 79507
  4. 681472
  5. 110592
  6. 42875
  7. 68921
  8. 205379
  9. 24389
  10. 551368
  11. 15625
  12. 753571
  13. 24389
  14. 19683
  15. 373248
  16. 29791
  17. 857375
  18. 103823
  19. 39304
  20. 658503
  21. 29791
  22. 636056
  23. 35937
  24. 185193
  25. 287496
  26. 1728
  27. 389017
  28. 50653
  29. 493039
  30. 4913
  31. 19683
  32. 238328
  33. 97336
  34. 32768
  35. 438976
  36. 17576
  37. 74088
  38. 421875
  39. 970299
  40. 704969

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