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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 271 · 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. 1.63³ =
  2. 2.62³ =
  3. 3.29³ =
  4. 4.69³ =
  5. 5.56³ =
  6. 6.95³ =
  7. 7.92³ =
  8. 8.53³ =
  9. 9.33³ =
  10. 10.64³ =
  11. 11.47³ =
  12. 12.15³ =
  13. 13.24³ =
  14. 14.46³ =
  15. 15.34³ =
  16. 16.49³ =
  17. 17.12³ =
  18. 18.57³ =
  19. 19.97³ =
  20. 20.97³ =
  21. 21.56³ =
  22. 22.89³ =
  23. 23.61³ =
  24. 24.54³ =
  25. 25.94³ =
  26. 26.59³ =
  27. 27.11³ =
  28. 28.45³ =
  29. 29.57³ =
  30. 30.47³ =
  31. 31.45³ =
  32. 32.42³ =
  33. 33.79³ =
  34. 34.28³ =
  35. 35.42³ =
  36. 36.12³ =
  37. 37.91³ =
  38. 38.81³ =
  39. 39.81³ =
  40. 40.43³ =

Answer key

  1. 250047
  2. 238328
  3. 24389
  4. 328509
  5. 175616
  6. 857375
  7. 778688
  8. 148877
  9. 35937
  10. 262144
  11. 103823
  12. 3375
  13. 13824
  14. 97336
  15. 39304
  16. 117649
  17. 1728
  18. 185193
  19. 912673
  20. 912673
  21. 175616
  22. 704969
  23. 226981
  24. 157464
  25. 830584
  26. 205379
  27. 1331
  28. 91125
  29. 185193
  30. 103823
  31. 91125
  32. 74088
  33. 493039
  34. 21952
  35. 74088
  36. 1728
  37. 753571
  38. 531441
  39. 531441
  40. 79507

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