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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 628 · 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. 1.48³ =
  2. 2.71³ =
  3. 3.46³ =
  4. 4.87³ =
  5. 5.51³ =
  6. 6.91³ =
  7. 7.24³ =
  8. 8.21³ =
  9. 9.47³ =
  10. 10.59³ =
  11. 11.65³ =
  12. 12.65³ =
  13. 13.17³ =
  14. 14.18³ =
  15. 15.24³ =
  16. 16.69³ =
  17. 17.95³ =
  18. 18.74³ =
  19. 19.91³ =
  20. 20.12³ =
  21. 21.52³ =
  22. 22.98³ =
  23. 23.84³ =
  24. 24.43³ =
  25. 25.34³ =
  26. 26.13³ =
  27. 27.16³ =
  28. 28.41³ =
  29. 29.82³ =
  30. 30.34³ =
  31. 31.75³ =
  32. 32.64³ =
  33. 33.91³ =
  34. 34.29³ =
  35. 35.18³ =
  36. 36.59³ =
  37. 37.17³ =
  38. 38.93³ =
  39. 39.66³ =
  40. 40.72³ =

Answer key

  1. 110592
  2. 357911
  3. 97336
  4. 658503
  5. 132651
  6. 753571
  7. 13824
  8. 9261
  9. 103823
  10. 205379
  11. 274625
  12. 274625
  13. 4913
  14. 5832
  15. 13824
  16. 328509
  17. 857375
  18. 405224
  19. 753571
  20. 1728
  21. 140608
  22. 941192
  23. 592704
  24. 79507
  25. 39304
  26. 2197
  27. 4096
  28. 68921
  29. 551368
  30. 39304
  31. 421875
  32. 262144
  33. 753571
  34. 24389
  35. 5832
  36. 205379
  37. 4913
  38. 804357
  39. 287496
  40. 373248

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