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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 819 · 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. 1.46³ =
  2. 2.31³ =
  3. 3.61³ =
  4. 4.22³ =
  5. 5.18³ =
  6. 6.97³ =
  7. 7.31³ =
  8. 8.14³ =
  9. 9.13³ =
  10. 10.86³ =
  11. 11.13³ =
  12. 12.18³ =
  13. 13.23³ =
  14. 14.29³ =
  15. 15.87³ =
  16. 16.16³ =
  17. 17.82³ =
  18. 18.45³ =
  19. 19.93³ =
  20. 20.19³ =
  21. 21.56³ =
  22. 22.91³ =
  23. 23.38³ =
  24. 24.31³ =
  25. 25.33³ =
  26. 26.76³ =
  27. 27.84³ =
  28. 28.46³ =
  29. 29.88³ =
  30. 30.16³ =
  31. 31.69³ =
  32. 32.84³ =
  33. 33.75³ =
  34. 34.32³ =
  35. 35.62³ =
  36. 36.22³ =
  37. 37.38³ =
  38. 38.16³ =
  39. 39.65³ =
  40. 40.47³ =

Answer key

  1. 97336
  2. 29791
  3. 226981
  4. 10648
  5. 5832
  6. 912673
  7. 29791
  8. 2744
  9. 2197
  10. 636056
  11. 2197
  12. 5832
  13. 12167
  14. 24389
  15. 658503
  16. 4096
  17. 551368
  18. 91125
  19. 804357
  20. 6859
  21. 175616
  22. 753571
  23. 54872
  24. 29791
  25. 35937
  26. 438976
  27. 592704
  28. 97336
  29. 681472
  30. 4096
  31. 328509
  32. 592704
  33. 421875
  34. 32768
  35. 238328
  36. 10648
  37. 54872
  38. 4096
  39. 274625
  40. 103823

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