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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 519 · 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. 1.31³ =
  2. 2.21³ =
  3. 3.85³ =
  4. 4.14³ =
  5. 5.51³ =
  6. 6.18³ =
  7. 7.76³ =
  8. 8.86³ =
  9. 9.58³ =
  10. 10.37³ =
  11. 11.24³ =
  12. 12.99³ =
  13. 13.91³ =
  14. 14.35³ =
  15. 15.65³ =
  16. 16.48³ =
  17. 17.58³ =
  18. 18.95³ =
  19. 19.73³ =
  20. 20.27³ =
  21. 21.71³ =
  22. 22.86³ =
  23. 23.51³ =
  24. 24.64³ =
  25. 25.37³ =
  26. 26.11³ =
  27. 27.45³ =
  28. 28.51³ =
  29. 29.85³ =
  30. 30.43³ =
  31. 31.43³ =
  32. 32.61³ =
  33. 33.91³ =
  34. 34.98³ =
  35. 35.71³ =
  36. 36.85³ =
  37. 37.94³ =
  38. 38.31³ =
  39. 39.11³ =
  40. 40.17³ =

Answer key

  1. 29791
  2. 9261
  3. 614125
  4. 2744
  5. 132651
  6. 5832
  7. 438976
  8. 636056
  9. 195112
  10. 50653
  11. 13824
  12. 970299
  13. 753571
  14. 42875
  15. 274625
  16. 110592
  17. 195112
  18. 857375
  19. 389017
  20. 19683
  21. 357911
  22. 636056
  23. 132651
  24. 262144
  25. 50653
  26. 1331
  27. 91125
  28. 132651
  29. 614125
  30. 79507
  31. 79507
  32. 226981
  33. 753571
  34. 941192
  35. 357911
  36. 614125
  37. 830584
  38. 29791
  39. 1331
  40. 4913

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