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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 763 · 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. 1.21³ =
  2. 2.18³ =
  3. 3.57³ =
  4. 4.34³ =
  5. 5.38³ =
  6. 6.31³ =
  7. 7.33³ =
  8. 8.48³ =
  9. 9.99³ =
  10. 10.79³ =
  11. 11.48³ =
  12. 12.63³ =
  13. 13.31³ =
  14. 14.45³ =
  15. 15.31³ =
  16. 16.52³ =
  17. 17.86³ =
  18. 18.64³ =
  19. 19.31³ =
  20. 20.64³ =
  21. 21.52³ =
  22. 22.81³ =
  23. 23.35³ =
  24. 24.35³ =
  25. 25.96³ =
  26. 26.42³ =
  27. 27.59³ =
  28. 28.11³ =
  29. 29.33³ =
  30. 30.64³ =
  31. 31.55³ =
  32. 32.74³ =
  33. 33.25³ =
  34. 34.12³ =
  35. 35.75³ =
  36. 36.37³ =
  37. 37.47³ =
  38. 38.21³ =
  39. 39.38³ =
  40. 40.73³ =

Answer key

  1. 9261
  2. 5832
  3. 185193
  4. 39304
  5. 54872
  6. 29791
  7. 35937
  8. 110592
  9. 970299
  10. 493039
  11. 110592
  12. 250047
  13. 29791
  14. 91125
  15. 29791
  16. 140608
  17. 636056
  18. 262144
  19. 29791
  20. 262144
  21. 140608
  22. 531441
  23. 42875
  24. 42875
  25. 884736
  26. 74088
  27. 205379
  28. 1331
  29. 35937
  30. 262144
  31. 166375
  32. 405224
  33. 15625
  34. 1728
  35. 421875
  36. 50653
  37. 103823
  38. 9261
  39. 54872
  40. 389017

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