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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 474 · 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. 1.39³ =
  2. 2.91³ =
  3. 3.68³ =
  4. 4.68³ =
  5. 5.92³ =
  6. 6.73³ =
  7. 7.73³ =
  8. 8.69³ =
  9. 9.66³ =
  10. 10.44³ =
  11. 11.23³ =
  12. 12.38³ =
  13. 13.26³ =
  14. 14.79³ =
  15. 15.36³ =
  16. 16.66³ =
  17. 17.68³ =
  18. 18.95³ =
  19. 19.82³ =
  20. 20.57³ =
  21. 21.15³ =
  22. 22.35³ =
  23. 23.67³ =
  24. 24.73³ =
  25. 25.97³ =
  26. 26.33³ =
  27. 27.98³ =
  28. 28.28³ =
  29. 29.14³ =
  30. 30.93³ =
  31. 31.56³ =
  32. 32.53³ =
  33. 33.13³ =
  34. 34.81³ =
  35. 35.61³ =
  36. 36.37³ =
  37. 37.61³ =
  38. 38.55³ =
  39. 39.16³ =
  40. 40.76³ =

Answer key

  1. 59319
  2. 753571
  3. 314432
  4. 314432
  5. 778688
  6. 389017
  7. 389017
  8. 328509
  9. 287496
  10. 85184
  11. 12167
  12. 54872
  13. 17576
  14. 493039
  15. 46656
  16. 287496
  17. 314432
  18. 857375
  19. 551368
  20. 185193
  21. 3375
  22. 42875
  23. 300763
  24. 389017
  25. 912673
  26. 35937
  27. 941192
  28. 21952
  29. 2744
  30. 804357
  31. 175616
  32. 148877
  33. 2197
  34. 531441
  35. 226981
  36. 50653
  37. 226981
  38. 166375
  39. 4096
  40. 438976

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