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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 624 · 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. 1.69³ =
  2. 2.81³ =
  3. 3.49³ =
  4. 4.32³ =
  5. 5.21³ =
  6. 6.65³ =
  7. 7.28³ =
  8. 8.18³ =
  9. 9.15³ =
  10. 10.91³ =
  11. 11.26³ =
  12. 12.81³ =
  13. 13.91³ =
  14. 14.54³ =
  15. 15.26³ =
  16. 16.58³ =
  17. 17.42³ =
  18. 18.72³ =
  19. 19.33³ =
  20. 20.68³ =
  21. 21.78³ =
  22. 22.87³ =
  23. 23.84³ =
  24. 24.24³ =
  25. 25.63³ =
  26. 26.56³ =
  27. 27.99³ =
  28. 28.83³ =
  29. 29.42³ =
  30. 30.86³ =
  31. 31.44³ =
  32. 32.83³ =
  33. 33.46³ =
  34. 34.37³ =
  35. 35.37³ =
  36. 36.31³ =
  37. 37.13³ =
  38. 38.85³ =
  39. 39.63³ =
  40. 40.65³ =

Answer key

  1. 328509
  2. 531441
  3. 117649
  4. 32768
  5. 9261
  6. 274625
  7. 21952
  8. 5832
  9. 3375
  10. 753571
  11. 17576
  12. 531441
  13. 753571
  14. 157464
  15. 17576
  16. 195112
  17. 74088
  18. 373248
  19. 35937
  20. 314432
  21. 474552
  22. 658503
  23. 592704
  24. 13824
  25. 250047
  26. 175616
  27. 970299
  28. 571787
  29. 74088
  30. 636056
  31. 85184
  32. 571787
  33. 97336
  34. 50653
  35. 50653
  36. 29791
  37. 2197
  38. 614125
  39. 250047
  40. 274625

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