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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 117 · 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. 1.96³ =
  2. 2.56³ =
  3. 3.31³ =
  4. 4.17³ =
  5. 5.53³ =
  6. 6.34³ =
  7. 7.48³ =
  8. 8.26³ =
  9. 9.82³ =
  10. 10.19³ =
  11. 11.86³ =
  12. 12.83³ =
  13. 13.41³ =
  14. 14.42³ =
  15. 15.15³ =
  16. 16.93³ =
  17. 17.42³ =
  18. 18.74³ =
  19. 19.71³ =
  20. 20.49³ =
  21. 21.92³ =
  22. 22.47³ =
  23. 23.62³ =
  24. 24.27³ =
  25. 25.71³ =
  26. 26.38³ =
  27. 27.24³ =
  28. 28.41³ =
  29. 29.35³ =
  30. 30.88³ =
  31. 31.89³ =
  32. 32.18³ =
  33. 33.72³ =
  34. 34.99³ =
  35. 35.95³ =
  36. 36.59³ =
  37. 37.46³ =
  38. 38.94³ =
  39. 39.87³ =
  40. 40.33³ =

Answer key

  1. 884736
  2. 175616
  3. 29791
  4. 4913
  5. 148877
  6. 39304
  7. 110592
  8. 17576
  9. 551368
  10. 6859
  11. 636056
  12. 571787
  13. 68921
  14. 74088
  15. 3375
  16. 804357
  17. 74088
  18. 405224
  19. 357911
  20. 117649
  21. 778688
  22. 103823
  23. 238328
  24. 19683
  25. 357911
  26. 54872
  27. 13824
  28. 68921
  29. 42875
  30. 681472
  31. 704969
  32. 5832
  33. 373248
  34. 970299
  35. 857375
  36. 205379
  37. 97336
  38. 830584
  39. 658503
  40. 35937

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