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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 499 · 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. 1.77³ =
  2. 2.39³ =
  3. 3.45³ =
  4. 4.55³ =
  5. 5.77³ =
  6. 6.16³ =
  7. 7.78³ =
  8. 8.25³ =
  9. 9.91³ =
  10. 10.65³ =
  11. 11.11³ =
  12. 12.12³ =
  13. 13.13³ =
  14. 14.81³ =
  15. 15.21³ =
  16. 16.61³ =
  17. 17.36³ =
  18. 18.25³ =
  19. 19.43³ =
  20. 20.54³ =
  21. 21.64³ =
  22. 22.41³ =
  23. 23.67³ =
  24. 24.61³ =
  25. 25.85³ =
  26. 26.21³ =
  27. 27.22³ =
  28. 28.21³ =
  29. 29.31³ =
  30. 30.55³ =
  31. 31.43³ =
  32. 32.95³ =
  33. 33.93³ =
  34. 34.86³ =
  35. 35.91³ =
  36. 36.99³ =
  37. 37.27³ =
  38. 38.93³ =
  39. 39.94³ =
  40. 40.41³ =

Answer key

  1. 456533
  2. 59319
  3. 91125
  4. 166375
  5. 456533
  6. 4096
  7. 474552
  8. 15625
  9. 753571
  10. 274625
  11. 1331
  12. 1728
  13. 2197
  14. 531441
  15. 9261
  16. 226981
  17. 46656
  18. 15625
  19. 79507
  20. 157464
  21. 262144
  22. 68921
  23. 300763
  24. 226981
  25. 614125
  26. 9261
  27. 10648
  28. 9261
  29. 29791
  30. 166375
  31. 79507
  32. 857375
  33. 804357
  34. 636056
  35. 753571
  36. 970299
  37. 19683
  38. 804357
  39. 830584
  40. 68921

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