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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 253 · 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. 1.26³ =
  2. 2.31³ =
  3. 3.16³ =
  4. 4.16³ =
  5. 5.29³ =
  6. 6.11³ =
  7. 7.13³ =
  8. 8.59³ =
  9. 9.29³ =
  10. 10.13³ =
  11. 11.41³ =
  12. 12.59³ =
  13. 13.29³ =
  14. 14.93³ =
  15. 15.13³ =
  16. 16.62³ =
  17. 17.93³ =
  18. 18.81³ =
  19. 19.98³ =
  20. 20.43³ =
  21. 21.24³ =
  22. 22.65³ =
  23. 23.64³ =
  24. 24.61³ =
  25. 25.18³ =
  26. 26.86³ =
  27. 27.98³ =
  28. 28.69³ =
  29. 29.14³ =
  30. 30.93³ =
  31. 31.48³ =
  32. 32.49³ =
  33. 33.62³ =
  34. 34.68³ =
  35. 35.38³ =
  36. 36.35³ =
  37. 37.51³ =
  38. 38.25³ =
  39. 39.49³ =
  40. 40.94³ =

Answer key

  1. 17576
  2. 29791
  3. 4096
  4. 4096
  5. 24389
  6. 1331
  7. 2197
  8. 205379
  9. 24389
  10. 2197
  11. 68921
  12. 205379
  13. 24389
  14. 804357
  15. 2197
  16. 238328
  17. 804357
  18. 531441
  19. 941192
  20. 79507
  21. 13824
  22. 274625
  23. 262144
  24. 226981
  25. 5832
  26. 636056
  27. 941192
  28. 328509
  29. 2744
  30. 804357
  31. 110592
  32. 117649
  33. 238328
  34. 314432
  35. 54872
  36. 42875
  37. 132651
  38. 15625
  39. 117649
  40. 830584

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