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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 921 · 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. 1.52³ =
  2. 2.23³ =
  3. 3.82³ =
  4. 4.96³ =
  5. 5.61³ =
  6. 6.88³ =
  7. 7.19³ =
  8. 8.34³ =
  9. 9.67³ =
  10. 10.78³ =
  11. 11.69³ =
  12. 12.51³ =
  13. 13.85³ =
  14. 14.96³ =
  15. 15.38³ =
  16. 16.77³ =
  17. 17.54³ =
  18. 18.88³ =
  19. 19.13³ =
  20. 20.83³ =
  21. 21.37³ =
  22. 22.12³ =
  23. 23.95³ =
  24. 24.51³ =
  25. 25.24³ =
  26. 26.86³ =
  27. 27.78³ =
  28. 28.47³ =
  29. 29.91³ =
  30. 30.23³ =
  31. 31.62³ =
  32. 32.86³ =
  33. 33.53³ =
  34. 34.25³ =
  35. 35.21³ =
  36. 36.38³ =
  37. 37.68³ =
  38. 38.19³ =
  39. 39.61³ =
  40. 40.91³ =

Answer key

  1. 140608
  2. 12167
  3. 551368
  4. 884736
  5. 226981
  6. 681472
  7. 6859
  8. 39304
  9. 300763
  10. 474552
  11. 328509
  12. 132651
  13. 614125
  14. 884736
  15. 54872
  16. 456533
  17. 157464
  18. 681472
  19. 2197
  20. 571787
  21. 50653
  22. 1728
  23. 857375
  24. 132651
  25. 13824
  26. 636056
  27. 474552
  28. 103823
  29. 753571
  30. 12167
  31. 238328
  32. 636056
  33. 148877
  34. 15625
  35. 9261
  36. 54872
  37. 314432
  38. 6859
  39. 226981
  40. 753571

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