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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 620 · 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. 2.61³ =
  3. 3.25³ =
  4. 4.61³ =
  5. 5.34³ =
  6. 6.74³ =
  7. 7.11³ =
  8. 8.34³ =
  9. 9.71³ =
  10. 10.51³ =
  11. 11.81³ =
  12. 12.54³ =
  13. 13.82³ =
  14. 14.61³ =
  15. 15.81³ =
  16. 16.93³ =
  17. 17.97³ =
  18. 18.34³ =
  19. 19.31³ =
  20. 20.45³ =
  21. 21.53³ =
  22. 22.37³ =
  23. 23.68³ =
  24. 24.53³ =
  25. 25.99³ =
  26. 26.28³ =
  27. 27.55³ =
  28. 28.52³ =
  29. 29.57³ =
  30. 30.21³ =
  31. 31.17³ =
  32. 32.62³ =
  33. 33.94³ =
  34. 34.16³ =
  35. 35.82³ =
  36. 36.87³ =
  37. 37.71³ =
  38. 38.54³ =
  39. 39.68³ =
  40. 40.11³ =

Answer key

  1. 328509
  2. 226981
  3. 15625
  4. 226981
  5. 39304
  6. 405224
  7. 1331
  8. 39304
  9. 357911
  10. 132651
  11. 531441
  12. 157464
  13. 551368
  14. 226981
  15. 531441
  16. 804357
  17. 912673
  18. 39304
  19. 29791
  20. 91125
  21. 148877
  22. 50653
  23. 314432
  24. 148877
  25. 970299
  26. 21952
  27. 166375
  28. 140608
  29. 185193
  30. 9261
  31. 4913
  32. 238328
  33. 830584
  34. 4096
  35. 551368
  36. 658503
  37. 357911
  38. 157464
  39. 314432
  40. 1331

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