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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 277 · 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. 1.51³ =
  2. 2.47³ =
  3. 3.12³ =
  4. 4.49³ =
  5. 5.61³ =
  6. 6.65³ =
  7. 7.38³ =
  8. 8.69³ =
  9. 9.11³ =
  10. 10.81³ =
  11. 11.84³ =
  12. 12.62³ =
  13. 13.82³ =
  14. 14.54³ =
  15. 15.94³ =
  16. 16.39³ =
  17. 17.25³ =
  18. 18.64³ =
  19. 19.19³ =
  20. 20.29³ =
  21. 21.92³ =
  22. 22.76³ =
  23. 23.82³ =
  24. 24.16³ =
  25. 25.22³ =
  26. 26.18³ =
  27. 27.74³ =
  28. 28.53³ =
  29. 29.61³ =
  30. 30.75³ =
  31. 31.66³ =
  32. 32.46³ =
  33. 33.84³ =
  34. 34.16³ =
  35. 35.31³ =
  36. 36.39³ =
  37. 37.93³ =
  38. 38.25³ =
  39. 39.16³ =
  40. 40.88³ =

Answer key

  1. 132651
  2. 103823
  3. 1728
  4. 117649
  5. 226981
  6. 274625
  7. 54872
  8. 328509
  9. 1331
  10. 531441
  11. 592704
  12. 238328
  13. 551368
  14. 157464
  15. 830584
  16. 59319
  17. 15625
  18. 262144
  19. 6859
  20. 24389
  21. 778688
  22. 438976
  23. 551368
  24. 4096
  25. 10648
  26. 5832
  27. 405224
  28. 148877
  29. 226981
  30. 421875
  31. 287496
  32. 97336
  33. 592704
  34. 4096
  35. 29791
  36. 59319
  37. 804357
  38. 15625
  39. 4096
  40. 681472

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