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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 480 · 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. 1.23³ =
  2. 2.21³ =
  3. 3.38³ =
  4. 4.41³ =
  5. 5.41³ =
  6. 6.47³ =
  7. 7.33³ =
  8. 8.84³ =
  9. 9.22³ =
  10. 10.89³ =
  11. 11.91³ =
  12. 12.35³ =
  13. 13.27³ =
  14. 14.74³ =
  15. 15.57³ =
  16. 16.81³ =
  17. 17.94³ =
  18. 18.21³ =
  19. 19.78³ =
  20. 20.24³ =
  21. 21.57³ =
  22. 22.56³ =
  23. 23.85³ =
  24. 24.66³ =
  25. 25.96³ =
  26. 26.42³ =
  27. 27.57³ =
  28. 28.75³ =
  29. 29.21³ =
  30. 30.25³ =
  31. 31.29³ =
  32. 32.18³ =
  33. 33.99³ =
  34. 34.65³ =
  35. 35.32³ =
  36. 36.43³ =
  37. 37.25³ =
  38. 38.71³ =
  39. 39.21³ =
  40. 40.97³ =

Answer key

  1. 12167
  2. 9261
  3. 54872
  4. 68921
  5. 68921
  6. 103823
  7. 35937
  8. 592704
  9. 10648
  10. 704969
  11. 753571
  12. 42875
  13. 19683
  14. 405224
  15. 185193
  16. 531441
  17. 830584
  18. 9261
  19. 474552
  20. 13824
  21. 185193
  22. 175616
  23. 614125
  24. 287496
  25. 884736
  26. 74088
  27. 185193
  28. 421875
  29. 9261
  30. 15625
  31. 24389
  32. 5832
  33. 970299
  34. 274625
  35. 32768
  36. 79507
  37. 15625
  38. 357911
  39. 9261
  40. 912673

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