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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 660 · 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. 1.36³ =
  2. 2.27³ =
  3. 3.35³ =
  4. 4.52³ =
  5. 5.76³ =
  6. 6.34³ =
  7. 7.43³ =
  8. 8.41³ =
  9. 9.71³ =
  10. 10.74³ =
  11. 11.14³ =
  12. 12.65³ =
  13. 13.66³ =
  14. 14.18³ =
  15. 15.54³ =
  16. 16.38³ =
  17. 17.17³ =
  18. 18.68³ =
  19. 19.94³ =
  20. 20.53³ =
  21. 21.98³ =
  22. 22.73³ =
  23. 23.59³ =
  24. 24.14³ =
  25. 25.61³ =
  26. 26.57³ =
  27. 27.93³ =
  28. 28.94³ =
  29. 29.33³ =
  30. 30.16³ =
  31. 31.68³ =
  32. 32.12³ =
  33. 33.19³ =
  34. 34.93³ =
  35. 35.92³ =
  36. 36.11³ =
  37. 37.83³ =
  38. 38.85³ =
  39. 39.97³ =
  40. 40.46³ =

Answer key

  1. 46656
  2. 19683
  3. 42875
  4. 140608
  5. 438976
  6. 39304
  7. 79507
  8. 68921
  9. 357911
  10. 405224
  11. 2744
  12. 274625
  13. 287496
  14. 5832
  15. 157464
  16. 54872
  17. 4913
  18. 314432
  19. 830584
  20. 148877
  21. 941192
  22. 389017
  23. 205379
  24. 2744
  25. 226981
  26. 185193
  27. 804357
  28. 830584
  29. 35937
  30. 4096
  31. 314432
  32. 1728
  33. 6859
  34. 804357
  35. 778688
  36. 1331
  37. 571787
  38. 614125
  39. 912673
  40. 97336

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