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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 649 · 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. 1.42³ =
  2. 2.21³ =
  3. 3.64³ =
  4. 4.14³ =
  5. 5.18³ =
  6. 6.37³ =
  7. 7.29³ =
  8. 8.93³ =
  9. 9.68³ =
  10. 10.39³ =
  11. 11.73³ =
  12. 12.81³ =
  13. 13.45³ =
  14. 14.59³ =
  15. 15.76³ =
  16. 16.33³ =
  17. 17.28³ =
  18. 18.63³ =
  19. 19.81³ =
  20. 20.53³ =
  21. 21.58³ =
  22. 22.66³ =
  23. 23.68³ =
  24. 24.13³ =
  25. 25.83³ =
  26. 26.53³ =
  27. 27.74³ =
  28. 28.54³ =
  29. 29.48³ =
  30. 30.31³ =
  31. 31.37³ =
  32. 32.35³ =
  33. 33.18³ =
  34. 34.83³ =
  35. 35.67³ =
  36. 36.52³ =
  37. 37.54³ =
  38. 38.41³ =
  39. 39.61³ =
  40. 40.43³ =

Answer key

  1. 74088
  2. 9261
  3. 262144
  4. 2744
  5. 5832
  6. 50653
  7. 24389
  8. 804357
  9. 314432
  10. 59319
  11. 389017
  12. 531441
  13. 91125
  14. 205379
  15. 438976
  16. 35937
  17. 21952
  18. 250047
  19. 531441
  20. 148877
  21. 195112
  22. 287496
  23. 314432
  24. 2197
  25. 571787
  26. 148877
  27. 405224
  28. 157464
  29. 110592
  30. 29791
  31. 50653
  32. 42875
  33. 5832
  34. 571787
  35. 300763
  36. 140608
  37. 157464
  38. 68921
  39. 226981
  40. 79507

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