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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 201 · 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. 1.63³ =
  2. 2.47³ =
  3. 3.42³ =
  4. 4.41³ =
  5. 5.51³ =
  6. 6.56³ =
  7. 7.19³ =
  8. 8.78³ =
  9. 9.47³ =
  10. 10.41³ =
  11. 11.63³ =
  12. 12.34³ =
  13. 13.53³ =
  14. 14.51³ =
  15. 15.49³ =
  16. 16.97³ =
  17. 17.14³ =
  18. 18.78³ =
  19. 19.84³ =
  20. 20.41³ =
  21. 21.36³ =
  22. 22.24³ =
  23. 23.18³ =
  24. 24.91³ =
  25. 25.18³ =
  26. 26.28³ =
  27. 27.65³ =
  28. 28.99³ =
  29. 29.35³ =
  30. 30.88³ =
  31. 31.63³ =
  32. 32.12³ =
  33. 33.41³ =
  34. 34.39³ =
  35. 35.93³ =
  36. 36.88³ =
  37. 37.17³ =
  38. 38.56³ =
  39. 39.79³ =
  40. 40.62³ =

Answer key

  1. 250047
  2. 103823
  3. 74088
  4. 68921
  5. 132651
  6. 175616
  7. 6859
  8. 474552
  9. 103823
  10. 68921
  11. 250047
  12. 39304
  13. 148877
  14. 132651
  15. 117649
  16. 912673
  17. 2744
  18. 474552
  19. 592704
  20. 68921
  21. 46656
  22. 13824
  23. 5832
  24. 753571
  25. 5832
  26. 21952
  27. 274625
  28. 970299
  29. 42875
  30. 681472
  31. 250047
  32. 1728
  33. 68921
  34. 59319
  35. 804357
  36. 681472
  37. 4913
  38. 175616
  39. 493039
  40. 238328

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