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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 438 · 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. 1.86³ =
  2. 2.16³ =
  3. 3.81³ =
  4. 4.69³ =
  5. 5.29³ =
  6. 6.51³ =
  7. 7.87³ =
  8. 8.86³ =
  9. 9.42³ =
  10. 10.93³ =
  11. 11.21³ =
  12. 12.88³ =
  13. 13.78³ =
  14. 14.21³ =
  15. 15.57³ =
  16. 16.69³ =
  17. 17.35³ =
  18. 18.62³ =
  19. 19.18³ =
  20. 20.56³ =
  21. 21.55³ =
  22. 22.71³ =
  23. 23.15³ =
  24. 24.21³ =
  25. 25.32³ =
  26. 26.21³ =
  27. 27.22³ =
  28. 28.93³ =
  29. 29.62³ =
  30. 30.26³ =
  31. 31.85³ =
  32. 32.16³ =
  33. 33.36³ =
  34. 34.82³ =
  35. 35.28³ =
  36. 36.97³ =
  37. 37.95³ =
  38. 38.23³ =
  39. 39.98³ =
  40. 40.71³ =

Answer key

  1. 636056
  2. 4096
  3. 531441
  4. 328509
  5. 24389
  6. 132651
  7. 658503
  8. 636056
  9. 74088
  10. 804357
  11. 9261
  12. 681472
  13. 474552
  14. 9261
  15. 185193
  16. 328509
  17. 42875
  18. 238328
  19. 5832
  20. 175616
  21. 166375
  22. 357911
  23. 3375
  24. 9261
  25. 32768
  26. 9261
  27. 10648
  28. 804357
  29. 238328
  30. 17576
  31. 614125
  32. 4096
  33. 46656
  34. 551368
  35. 21952
  36. 912673
  37. 857375
  38. 12167
  39. 941192
  40. 357911

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