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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 508 · 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. 1.69³ =
  2. 2.63³ =
  3. 3.66³ =
  4. 4.16³ =
  5. 5.87³ =
  6. 6.32³ =
  7. 7.54³ =
  8. 8.86³ =
  9. 9.75³ =
  10. 10.23³ =
  11. 11.93³ =
  12. 12.35³ =
  13. 13.39³ =
  14. 14.82³ =
  15. 15.43³ =
  16. 16.62³ =
  17. 17.81³ =
  18. 18.48³ =
  19. 19.95³ =
  20. 20.11³ =
  21. 21.57³ =
  22. 22.48³ =
  23. 23.81³ =
  24. 24.58³ =
  25. 25.21³ =
  26. 26.76³ =
  27. 27.49³ =
  28. 28.63³ =
  29. 29.32³ =
  30. 30.91³ =
  31. 31.83³ =
  32. 32.36³ =
  33. 33.51³ =
  34. 34.94³ =
  35. 35.94³ =
  36. 36.56³ =
  37. 37.17³ =
  38. 38.59³ =
  39. 39.14³ =
  40. 40.29³ =

Answer key

  1. 328509
  2. 250047
  3. 287496
  4. 4096
  5. 658503
  6. 32768
  7. 157464
  8. 636056
  9. 421875
  10. 12167
  11. 804357
  12. 42875
  13. 59319
  14. 551368
  15. 79507
  16. 238328
  17. 531441
  18. 110592
  19. 857375
  20. 1331
  21. 185193
  22. 110592
  23. 531441
  24. 195112
  25. 9261
  26. 438976
  27. 117649
  28. 250047
  29. 32768
  30. 753571
  31. 571787
  32. 46656
  33. 132651
  34. 830584
  35. 830584
  36. 175616
  37. 4913
  38. 205379
  39. 2744
  40. 24389

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