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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 3 · 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. 2.16³ =
  3. 3.29³ =
  4. 4.21³ =
  5. 5.28³ =
  6. 6.33³ =
  7. 7.29³ =
  8. 8.71³ =
  9. 9.56³ =
  10. 10.29³ =
  11. 11.26³ =
  12. 12.79³ =
  13. 13.76³ =
  14. 14.88³ =
  15. 15.76³ =
  16. 16.23³ =
  17. 17.23³ =
  18. 18.23³ =
  19. 19.55³ =
  20. 20.35³ =
  21. 21.44³ =
  22. 22.68³ =
  23. 23.62³ =
  24. 24.71³ =
  25. 25.21³ =
  26. 26.52³ =
  27. 27.94³ =
  28. 28.26³ =
  29. 29.18³ =
  30. 30.35³ =
  31. 31.84³ =
  32. 32.16³ =
  33. 33.33³ =
  34. 34.15³ =
  35. 35.86³ =
  36. 36.65³ =
  37. 37.74³ =
  38. 38.71³ =
  39. 39.31³ =
  40. 40.44³ =

Answer key

  1. 250047
  2. 4096
  3. 24389
  4. 9261
  5. 21952
  6. 35937
  7. 24389
  8. 357911
  9. 175616
  10. 24389
  11. 17576
  12. 493039
  13. 438976
  14. 681472
  15. 438976
  16. 12167
  17. 12167
  18. 12167
  19. 166375
  20. 42875
  21. 85184
  22. 314432
  23. 238328
  24. 357911
  25. 9261
  26. 140608
  27. 830584
  28. 17576
  29. 5832
  30. 42875
  31. 592704
  32. 4096
  33. 35937
  34. 3375
  35. 636056
  36. 274625
  37. 405224
  38. 357911
  39. 29791
  40. 85184

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