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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 284 · 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. 1.24³ =
  2. 2.27³ =
  3. 3.49³ =
  4. 4.36³ =
  5. 5.12³ =
  6. 6.34³ =
  7. 7.35³ =
  8. 8.65³ =
  9. 9.95³ =
  10. 10.32³ =
  11. 11.17³ =
  12. 12.76³ =
  13. 13.68³ =
  14. 14.53³ =
  15. 15.14³ =
  16. 16.25³ =
  17. 17.82³ =
  18. 18.36³ =
  19. 19.79³ =
  20. 20.34³ =
  21. 21.15³ =
  22. 22.51³ =
  23. 23.19³ =
  24. 24.87³ =
  25. 25.15³ =
  26. 26.97³ =
  27. 27.57³ =
  28. 28.91³ =
  29. 29.11³ =
  30. 30.27³ =
  31. 31.35³ =
  32. 32.47³ =
  33. 33.42³ =
  34. 34.76³ =
  35. 35.65³ =
  36. 36.93³ =
  37. 37.38³ =
  38. 38.61³ =
  39. 39.31³ =
  40. 40.66³ =

Answer key

  1. 13824
  2. 19683
  3. 117649
  4. 46656
  5. 1728
  6. 39304
  7. 42875
  8. 274625
  9. 857375
  10. 32768
  11. 4913
  12. 438976
  13. 314432
  14. 148877
  15. 2744
  16. 15625
  17. 551368
  18. 46656
  19. 493039
  20. 39304
  21. 3375
  22. 132651
  23. 6859
  24. 658503
  25. 3375
  26. 912673
  27. 185193
  28. 753571
  29. 1331
  30. 19683
  31. 42875
  32. 103823
  33. 74088
  34. 438976
  35. 274625
  36. 804357
  37. 54872
  38. 226981
  39. 29791
  40. 287496

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