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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 242 · 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. 1.97³ =
  2. 2.59³ =
  3. 3.21³ =
  4. 4.15³ =
  5. 5.31³ =
  6. 6.82³ =
  7. 7.65³ =
  8. 8.42³ =
  9. 9.24³ =
  10. 10.21³ =
  11. 11.93³ =
  12. 12.76³ =
  13. 13.11³ =
  14. 14.26³ =
  15. 15.91³ =
  16. 16.69³ =
  17. 17.58³ =
  18. 18.61³ =
  19. 19.36³ =
  20. 20.42³ =
  21. 21.68³ =
  22. 22.73³ =
  23. 23.71³ =
  24. 24.35³ =
  25. 25.52³ =
  26. 26.54³ =
  27. 27.47³ =
  28. 28.56³ =
  29. 29.85³ =
  30. 30.21³ =
  31. 31.15³ =
  32. 32.41³ =
  33. 33.38³ =
  34. 34.14³ =
  35. 35.73³ =
  36. 36.69³ =
  37. 37.67³ =
  38. 38.37³ =
  39. 39.17³ =
  40. 40.56³ =

Answer key

  1. 912673
  2. 205379
  3. 9261
  4. 3375
  5. 29791
  6. 551368
  7. 274625
  8. 74088
  9. 13824
  10. 9261
  11. 804357
  12. 438976
  13. 1331
  14. 17576
  15. 753571
  16. 328509
  17. 195112
  18. 226981
  19. 46656
  20. 74088
  21. 314432
  22. 389017
  23. 357911
  24. 42875
  25. 140608
  26. 157464
  27. 103823
  28. 175616
  29. 614125
  30. 9261
  31. 3375
  32. 68921
  33. 54872
  34. 2744
  35. 389017
  36. 328509
  37. 300763
  38. 50653
  39. 4913
  40. 175616

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