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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 53 · 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. 1.83³ =
  2. 2.53³ =
  3. 3.46³ =
  4. 4.95³ =
  5. 5.23³ =
  6. 6.24³ =
  7. 7.64³ =
  8. 8.35³ =
  9. 9.81³ =
  10. 10.11³ =
  11. 11.64³ =
  12. 12.11³ =
  13. 13.58³ =
  14. 14.47³ =
  15. 15.38³ =
  16. 16.81³ =
  17. 17.61³ =
  18. 18.12³ =
  19. 19.74³ =
  20. 20.22³ =
  21. 21.25³ =
  22. 22.49³ =
  23. 23.91³ =
  24. 24.66³ =
  25. 25.54³ =
  26. 26.24³ =
  27. 27.71³ =
  28. 28.39³ =
  29. 29.31³ =
  30. 30.91³ =
  31. 31.88³ =
  32. 32.73³ =
  33. 33.81³ =
  34. 34.37³ =
  35. 35.74³ =
  36. 36.74³ =
  37. 37.56³ =
  38. 38.82³ =
  39. 39.99³ =
  40. 40.96³ =

Answer key

  1. 571787
  2. 148877
  3. 97336
  4. 857375
  5. 12167
  6. 13824
  7. 262144
  8. 42875
  9. 531441
  10. 1331
  11. 262144
  12. 1331
  13. 195112
  14. 103823
  15. 54872
  16. 531441
  17. 226981
  18. 1728
  19. 405224
  20. 10648
  21. 15625
  22. 117649
  23. 753571
  24. 287496
  25. 157464
  26. 13824
  27. 357911
  28. 59319
  29. 29791
  30. 753571
  31. 681472
  32. 389017
  33. 531441
  34. 50653
  35. 405224
  36. 405224
  37. 175616
  38. 551368
  39. 970299
  40. 884736

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