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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 797 · 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. 1.61³ =
  2. 2.26³ =
  3. 3.12³ =
  4. 4.28³ =
  5. 5.14³ =
  6. 6.16³ =
  7. 7.68³ =
  8. 8.41³ =
  9. 9.92³ =
  10. 10.25³ =
  11. 11.51³ =
  12. 12.71³ =
  13. 13.45³ =
  14. 14.38³ =
  15. 15.41³ =
  16. 16.33³ =
  17. 17.29³ =
  18. 18.59³ =
  19. 19.25³ =
  20. 20.86³ =
  21. 21.83³ =
  22. 22.43³ =
  23. 23.82³ =
  24. 24.59³ =
  25. 25.41³ =
  26. 26.42³ =
  27. 27.35³ =
  28. 28.57³ =
  29. 29.17³ =
  30. 30.23³ =
  31. 31.53³ =
  32. 32.22³ =
  33. 33.31³ =
  34. 34.65³ =
  35. 35.23³ =
  36. 36.41³ =
  37. 37.22³ =
  38. 38.43³ =
  39. 39.75³ =
  40. 40.28³ =

Answer key

  1. 226981
  2. 17576
  3. 1728
  4. 21952
  5. 2744
  6. 4096
  7. 314432
  8. 68921
  9. 778688
  10. 15625
  11. 132651
  12. 357911
  13. 91125
  14. 54872
  15. 68921
  16. 35937
  17. 24389
  18. 205379
  19. 15625
  20. 636056
  21. 571787
  22. 79507
  23. 551368
  24. 205379
  25. 68921
  26. 74088
  27. 42875
  28. 185193
  29. 4913
  30. 12167
  31. 148877
  32. 10648
  33. 29791
  34. 274625
  35. 12167
  36. 68921
  37. 10648
  38. 79507
  39. 421875
  40. 21952

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