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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 771 · 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. 1.17³ =
  2. 2.82³ =
  3. 3.69³ =
  4. 4.78³ =
  5. 5.16³ =
  6. 6.27³ =
  7. 7.12³ =
  8. 8.49³ =
  9. 9.36³ =
  10. 10.64³ =
  11. 11.89³ =
  12. 12.71³ =
  13. 13.15³ =
  14. 14.82³ =
  15. 15.47³ =
  16. 16.84³ =
  17. 17.88³ =
  18. 18.15³ =
  19. 19.35³ =
  20. 20.15³ =
  21. 21.21³ =
  22. 22.91³ =
  23. 23.25³ =
  24. 24.52³ =
  25. 25.16³ =
  26. 26.52³ =
  27. 27.41³ =
  28. 28.39³ =
  29. 29.56³ =
  30. 30.23³ =
  31. 31.87³ =
  32. 32.21³ =
  33. 33.85³ =
  34. 34.82³ =
  35. 35.63³ =
  36. 36.84³ =
  37. 37.54³ =
  38. 38.58³ =
  39. 39.53³ =
  40. 40.19³ =

Answer key

  1. 4913
  2. 551368
  3. 328509
  4. 474552
  5. 4096
  6. 19683
  7. 1728
  8. 117649
  9. 46656
  10. 262144
  11. 704969
  12. 357911
  13. 3375
  14. 551368
  15. 103823
  16. 592704
  17. 681472
  18. 3375
  19. 42875
  20. 3375
  21. 9261
  22. 753571
  23. 15625
  24. 140608
  25. 4096
  26. 140608
  27. 68921
  28. 59319
  29. 175616
  30. 12167
  31. 658503
  32. 9261
  33. 614125
  34. 551368
  35. 250047
  36. 592704
  37. 157464
  38. 195112
  39. 148877
  40. 6859

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