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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 855 · 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. 1.75³ =
  2. 2.18³ =
  3. 3.32³ =
  4. 4.56³ =
  5. 5.69³ =
  6. 6.93³ =
  7. 7.98³ =
  8. 8.21³ =
  9. 9.51³ =
  10. 10.12³ =
  11. 11.31³ =
  12. 12.57³ =
  13. 13.27³ =
  14. 14.68³ =
  15. 15.97³ =
  16. 16.91³ =
  17. 17.29³ =
  18. 18.17³ =
  19. 19.98³ =
  20. 20.85³ =
  21. 21.59³ =
  22. 22.71³ =
  23. 23.72³ =
  24. 24.91³ =
  25. 25.96³ =
  26. 26.33³ =
  27. 27.18³ =
  28. 28.21³ =
  29. 29.65³ =
  30. 30.81³ =
  31. 31.81³ =
  32. 32.42³ =
  33. 33.88³ =
  34. 34.71³ =
  35. 35.48³ =
  36. 36.17³ =
  37. 37.74³ =
  38. 38.12³ =
  39. 39.96³ =
  40. 40.28³ =

Answer key

  1. 421875
  2. 5832
  3. 32768
  4. 175616
  5. 328509
  6. 804357
  7. 941192
  8. 9261
  9. 132651
  10. 1728
  11. 29791
  12. 185193
  13. 19683
  14. 314432
  15. 912673
  16. 753571
  17. 24389
  18. 4913
  19. 941192
  20. 614125
  21. 205379
  22. 357911
  23. 373248
  24. 753571
  25. 884736
  26. 35937
  27. 5832
  28. 9261
  29. 274625
  30. 531441
  31. 531441
  32. 74088
  33. 681472
  34. 357911
  35. 110592
  36. 4913
  37. 405224
  38. 1728
  39. 884736
  40. 21952

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