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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 286 · 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. 1.72³ =
  2. 2.48³ =
  3. 3.21³ =
  4. 4.89³ =
  5. 5.49³ =
  6. 6.64³ =
  7. 7.69³ =
  8. 8.47³ =
  9. 9.82³ =
  10. 10.65³ =
  11. 11.59³ =
  12. 12.34³ =
  13. 13.91³ =
  14. 14.65³ =
  15. 15.61³ =
  16. 16.52³ =
  17. 17.31³ =
  18. 18.41³ =
  19. 19.47³ =
  20. 20.56³ =
  21. 21.51³ =
  22. 22.45³ =
  23. 23.56³ =
  24. 24.21³ =
  25. 25.76³ =
  26. 26.69³ =
  27. 27.54³ =
  28. 28.51³ =
  29. 29.35³ =
  30. 30.64³ =
  31. 31.41³ =
  32. 32.75³ =
  33. 33.28³ =
  34. 34.52³ =
  35. 35.98³ =
  36. 36.37³ =
  37. 37.23³ =
  38. 38.29³ =
  39. 39.59³ =
  40. 40.85³ =

Answer key

  1. 373248
  2. 110592
  3. 9261
  4. 704969
  5. 117649
  6. 262144
  7. 328509
  8. 103823
  9. 551368
  10. 274625
  11. 205379
  12. 39304
  13. 753571
  14. 274625
  15. 226981
  16. 140608
  17. 29791
  18. 68921
  19. 103823
  20. 175616
  21. 132651
  22. 91125
  23. 175616
  24. 9261
  25. 438976
  26. 328509
  27. 157464
  28. 132651
  29. 42875
  30. 262144
  31. 68921
  32. 421875
  33. 21952
  34. 140608
  35. 941192
  36. 50653
  37. 12167
  38. 24389
  39. 205379
  40. 614125

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