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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 196 · 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. 2.43³ =
  3. 3.38³ =
  4. 4.22³ =
  5. 5.64³ =
  6. 6.96³ =
  7. 7.29³ =
  8. 8.26³ =
  9. 9.25³ =
  10. 10.68³ =
  11. 11.53³ =
  12. 12.68³ =
  13. 13.88³ =
  14. 14.94³ =
  15. 15.87³ =
  16. 16.41³ =
  17. 17.16³ =
  18. 18.18³ =
  19. 19.81³ =
  20. 20.69³ =
  21. 21.69³ =
  22. 22.39³ =
  23. 23.73³ =
  24. 24.24³ =
  25. 25.43³ =
  26. 26.41³ =
  27. 27.66³ =
  28. 28.21³ =
  29. 29.48³ =
  30. 30.33³ =
  31. 31.82³ =
  32. 32.92³ =
  33. 33.67³ =
  34. 34.55³ =
  35. 35.32³ =
  36. 36.18³ =
  37. 37.27³ =
  38. 38.18³ =
  39. 39.24³ =
  40. 40.31³ =

Answer key

  1. 97336
  2. 79507
  3. 54872
  4. 10648
  5. 262144
  6. 884736
  7. 24389
  8. 17576
  9. 15625
  10. 314432
  11. 148877
  12. 314432
  13. 681472
  14. 830584
  15. 658503
  16. 68921
  17. 4096
  18. 5832
  19. 531441
  20. 328509
  21. 328509
  22. 59319
  23. 389017
  24. 13824
  25. 79507
  26. 68921
  27. 287496
  28. 9261
  29. 110592
  30. 35937
  31. 551368
  32. 778688
  33. 300763
  34. 166375
  35. 32768
  36. 5832
  37. 19683
  38. 5832
  39. 13824
  40. 29791

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