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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 547 · 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. 1.81³ =
  2. 2.11³ =
  3. 3.29³ =
  4. 4.81³ =
  5. 5.31³ =
  6. 6.67³ =
  7. 7.46³ =
  8. 8.67³ =
  9. 9.61³ =
  10. 10.21³ =
  11. 11.58³ =
  12. 12.13³ =
  13. 13.95³ =
  14. 14.23³ =
  15. 15.45³ =
  16. 16.61³ =
  17. 17.33³ =
  18. 18.55³ =
  19. 19.79³ =
  20. 20.16³ =
  21. 21.68³ =
  22. 22.86³ =
  23. 23.77³ =
  24. 24.71³ =
  25. 25.91³ =
  26. 26.81³ =
  27. 27.26³ =
  28. 28.97³ =
  29. 29.46³ =
  30. 30.79³ =
  31. 31.62³ =
  32. 32.98³ =
  33. 33.13³ =
  34. 34.78³ =
  35. 35.99³ =
  36. 36.31³ =
  37. 37.31³ =
  38. 38.51³ =
  39. 39.17³ =
  40. 40.45³ =

Answer key

  1. 531441
  2. 1331
  3. 24389
  4. 531441
  5. 29791
  6. 300763
  7. 97336
  8. 300763
  9. 226981
  10. 9261
  11. 195112
  12. 2197
  13. 857375
  14. 12167
  15. 91125
  16. 226981
  17. 35937
  18. 166375
  19. 493039
  20. 4096
  21. 314432
  22. 636056
  23. 456533
  24. 357911
  25. 753571
  26. 531441
  27. 17576
  28. 912673
  29. 97336
  30. 493039
  31. 238328
  32. 941192
  33. 2197
  34. 474552
  35. 970299
  36. 29791
  37. 29791
  38. 132651
  39. 4913
  40. 91125

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