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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 455 · 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. 1.45³ =
  2. 2.29³ =
  3. 3.54³ =
  4. 4.23³ =
  5. 5.91³ =
  6. 6.21³ =
  7. 7.13³ =
  8. 8.21³ =
  9. 9.61³ =
  10. 10.74³ =
  11. 11.55³ =
  12. 12.84³ =
  13. 13.21³ =
  14. 14.35³ =
  15. 15.48³ =
  16. 16.61³ =
  17. 17.95³ =
  18. 18.48³ =
  19. 19.41³ =
  20. 20.75³ =
  21. 21.49³ =
  22. 22.64³ =
  23. 23.37³ =
  24. 24.81³ =
  25. 25.97³ =
  26. 26.91³ =
  27. 27.45³ =
  28. 28.81³ =
  29. 29.55³ =
  30. 30.72³ =
  31. 31.37³ =
  32. 32.51³ =
  33. 33.91³ =
  34. 34.93³ =
  35. 35.25³ =
  36. 36.32³ =
  37. 37.82³ =
  38. 38.91³ =
  39. 39.53³ =
  40. 40.82³ =

Answer key

  1. 91125
  2. 24389
  3. 157464
  4. 12167
  5. 753571
  6. 9261
  7. 2197
  8. 9261
  9. 226981
  10. 405224
  11. 166375
  12. 592704
  13. 9261
  14. 42875
  15. 110592
  16. 226981
  17. 857375
  18. 110592
  19. 68921
  20. 421875
  21. 117649
  22. 262144
  23. 50653
  24. 531441
  25. 912673
  26. 753571
  27. 91125
  28. 531441
  29. 166375
  30. 373248
  31. 50653
  32. 132651
  33. 753571
  34. 804357
  35. 15625
  36. 32768
  37. 551368
  38. 753571
  39. 148877
  40. 551368

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