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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 12 · 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. 1.77³ =
  2. 2.61³ =
  3. 3.29³ =
  4. 4.13³ =
  5. 5.19³ =
  6. 6.55³ =
  7. 7.41³ =
  8. 8.93³ =
  9. 9.36³ =
  10. 10.21³ =
  11. 11.91³ =
  12. 12.61³ =
  13. 13.63³ =
  14. 14.85³ =
  15. 15.75³ =
  16. 16.28³ =
  17. 17.94³ =
  18. 18.91³ =
  19. 19.65³ =
  20. 20.72³ =
  21. 21.51³ =
  22. 22.39³ =
  23. 23.29³ =
  24. 24.92³ =
  25. 25.99³ =
  26. 26.16³ =
  27. 27.13³ =
  28. 28.16³ =
  29. 29.43³ =
  30. 30.24³ =
  31. 31.63³ =
  32. 32.96³ =
  33. 33.86³ =
  34. 34.41³ =
  35. 35.64³ =
  36. 36.62³ =
  37. 37.21³ =
  38. 38.44³ =
  39. 39.35³ =
  40. 40.62³ =

Answer key

  1. 456533
  2. 226981
  3. 24389
  4. 2197
  5. 6859
  6. 166375
  7. 68921
  8. 804357
  9. 46656
  10. 9261
  11. 753571
  12. 226981
  13. 250047
  14. 614125
  15. 421875
  16. 21952
  17. 830584
  18. 753571
  19. 274625
  20. 373248
  21. 132651
  22. 59319
  23. 24389
  24. 778688
  25. 970299
  26. 4096
  27. 2197
  28. 4096
  29. 79507
  30. 13824
  31. 250047
  32. 884736
  33. 636056
  34. 68921
  35. 262144
  36. 238328
  37. 9261
  38. 85184
  39. 42875
  40. 238328

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