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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 569 · 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. 1.19³ =
  2. 2.64³ =
  3. 3.44³ =
  4. 4.19³ =
  5. 5.77³ =
  6. 6.53³ =
  7. 7.15³ =
  8. 8.25³ =
  9. 9.29³ =
  10. 10.37³ =
  11. 11.87³ =
  12. 12.58³ =
  13. 13.34³ =
  14. 14.27³ =
  15. 15.77³ =
  16. 16.31³ =
  17. 17.82³ =
  18. 18.95³ =
  19. 19.21³ =
  20. 20.51³ =
  21. 21.12³ =
  22. 22.58³ =
  23. 23.73³ =
  24. 24.89³ =
  25. 25.88³ =
  26. 26.11³ =
  27. 27.65³ =
  28. 28.25³ =
  29. 29.34³ =
  30. 30.97³ =
  31. 31.59³ =
  32. 32.68³ =
  33. 33.18³ =
  34. 34.81³ =
  35. 35.32³ =
  36. 36.43³ =
  37. 37.58³ =
  38. 38.74³ =
  39. 39.79³ =
  40. 40.84³ =

Answer key

  1. 6859
  2. 262144
  3. 85184
  4. 6859
  5. 456533
  6. 148877
  7. 3375
  8. 15625
  9. 24389
  10. 50653
  11. 658503
  12. 195112
  13. 39304
  14. 19683
  15. 456533
  16. 29791
  17. 551368
  18. 857375
  19. 9261
  20. 132651
  21. 1728
  22. 195112
  23. 389017
  24. 704969
  25. 681472
  26. 1331
  27. 274625
  28. 15625
  29. 39304
  30. 912673
  31. 205379
  32. 314432
  33. 5832
  34. 531441
  35. 32768
  36. 79507
  37. 195112
  38. 405224
  39. 493039
  40. 592704

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