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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 684 · 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. 1.34³ =
  2. 2.56³ =
  3. 3.55³ =
  4. 4.31³ =
  5. 5.24³ =
  6. 6.41³ =
  7. 7.39³ =
  8. 8.58³ =
  9. 9.16³ =
  10. 10.19³ =
  11. 11.21³ =
  12. 12.54³ =
  13. 13.51³ =
  14. 14.25³ =
  15. 15.28³ =
  16. 16.89³ =
  17. 17.91³ =
  18. 18.64³ =
  19. 19.14³ =
  20. 20.12³ =
  21. 21.12³ =
  22. 22.23³ =
  23. 23.96³ =
  24. 24.12³ =
  25. 25.47³ =
  26. 26.47³ =
  27. 27.72³ =
  28. 28.51³ =
  29. 29.79³ =
  30. 30.26³ =
  31. 31.91³ =
  32. 32.87³ =
  33. 33.13³ =
  34. 34.61³ =
  35. 35.21³ =
  36. 36.97³ =
  37. 37.28³ =
  38. 38.93³ =
  39. 39.88³ =
  40. 40.41³ =

Answer key

  1. 39304
  2. 175616
  3. 166375
  4. 29791
  5. 13824
  6. 68921
  7. 59319
  8. 195112
  9. 4096
  10. 6859
  11. 9261
  12. 157464
  13. 132651
  14. 15625
  15. 21952
  16. 704969
  17. 753571
  18. 262144
  19. 2744
  20. 1728
  21. 1728
  22. 12167
  23. 884736
  24. 1728
  25. 103823
  26. 103823
  27. 373248
  28. 132651
  29. 493039
  30. 17576
  31. 753571
  32. 658503
  33. 2197
  34. 226981
  35. 9261
  36. 912673
  37. 21952
  38. 804357
  39. 681472
  40. 68921

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