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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 370 · 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. 1.32³ =
  2. 2.68³ =
  3. 3.56³ =
  4. 4.91³ =
  5. 5.23³ =
  6. 6.44³ =
  7. 7.63³ =
  8. 8.27³ =
  9. 9.61³ =
  10. 10.21³ =
  11. 11.53³ =
  12. 12.86³ =
  13. 13.35³ =
  14. 14.13³ =
  15. 15.23³ =
  16. 16.81³ =
  17. 17.78³ =
  18. 18.56³ =
  19. 19.94³ =
  20. 20.92³ =
  21. 21.87³ =
  22. 22.31³ =
  23. 23.53³ =
  24. 24.93³ =
  25. 25.74³ =
  26. 26.15³ =
  27. 27.51³ =
  28. 28.65³ =
  29. 29.21³ =
  30. 30.76³ =
  31. 31.57³ =
  32. 32.45³ =
  33. 33.24³ =
  34. 34.23³ =
  35. 35.76³ =
  36. 36.59³ =
  37. 37.13³ =
  38. 38.54³ =
  39. 39.59³ =
  40. 40.57³ =

Answer key

  1. 32768
  2. 314432
  3. 175616
  4. 753571
  5. 12167
  6. 85184
  7. 250047
  8. 19683
  9. 226981
  10. 9261
  11. 148877
  12. 636056
  13. 42875
  14. 2197
  15. 12167
  16. 531441
  17. 474552
  18. 175616
  19. 830584
  20. 778688
  21. 658503
  22. 29791
  23. 148877
  24. 804357
  25. 405224
  26. 3375
  27. 132651
  28. 274625
  29. 9261
  30. 438976
  31. 185193
  32. 91125
  33. 13824
  34. 12167
  35. 438976
  36. 205379
  37. 2197
  38. 157464
  39. 205379
  40. 185193

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