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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 133 · 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. 1.34³ =
  2. 2.53³ =
  3. 3.46³ =
  4. 4.73³ =
  5. 5.97³ =
  6. 6.66³ =
  7. 7.89³ =
  8. 8.81³ =
  9. 9.62³ =
  10. 10.91³ =
  11. 11.16³ =
  12. 12.31³ =
  13. 13.73³ =
  14. 14.25³ =
  15. 15.74³ =
  16. 16.27³ =
  17. 17.67³ =
  18. 18.88³ =
  19. 19.29³ =
  20. 20.67³ =
  21. 21.45³ =
  22. 22.45³ =
  23. 23.28³ =
  24. 24.99³ =
  25. 25.43³ =
  26. 26.57³ =
  27. 27.79³ =
  28. 28.17³ =
  29. 29.35³ =
  30. 30.76³ =
  31. 31.18³ =
  32. 32.95³ =
  33. 33.77³ =
  34. 34.54³ =
  35. 35.81³ =
  36. 36.34³ =
  37. 37.23³ =
  38. 38.11³ =
  39. 39.56³ =
  40. 40.57³ =

Answer key

  1. 39304
  2. 148877
  3. 97336
  4. 389017
  5. 912673
  6. 287496
  7. 704969
  8. 531441
  9. 238328
  10. 753571
  11. 4096
  12. 29791
  13. 389017
  14. 15625
  15. 405224
  16. 19683
  17. 300763
  18. 681472
  19. 24389
  20. 300763
  21. 91125
  22. 91125
  23. 21952
  24. 970299
  25. 79507
  26. 185193
  27. 493039
  28. 4913
  29. 42875
  30. 438976
  31. 5832
  32. 857375
  33. 456533
  34. 157464
  35. 531441
  36. 39304
  37. 12167
  38. 1331
  39. 175616
  40. 185193

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