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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 22 · 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. 1.55³ =
  2. 2.23³ =
  3. 3.93³ =
  4. 4.53³ =
  5. 5.67³ =
  6. 6.72³ =
  7. 7.79³ =
  8. 8.24³ =
  9. 9.29³ =
  10. 10.49³ =
  11. 11.76³ =
  12. 12.35³ =
  13. 13.31³ =
  14. 14.61³ =
  15. 15.33³ =
  16. 16.97³ =
  17. 17.81³ =
  18. 18.33³ =
  19. 19.15³ =
  20. 20.91³ =
  21. 21.41³ =
  22. 22.21³ =
  23. 23.59³ =
  24. 24.34³ =
  25. 25.81³ =
  26. 26.76³ =
  27. 27.59³ =
  28. 28.36³ =
  29. 29.12³ =
  30. 30.13³ =
  31. 31.51³ =
  32. 32.52³ =
  33. 33.75³ =
  34. 34.73³ =
  35. 35.92³ =
  36. 36.61³ =
  37. 37.41³ =
  38. 38.92³ =
  39. 39.26³ =
  40. 40.24³ =

Answer key

  1. 166375
  2. 12167
  3. 804357
  4. 148877
  5. 300763
  6. 373248
  7. 493039
  8. 13824
  9. 24389
  10. 117649
  11. 438976
  12. 42875
  13. 29791
  14. 226981
  15. 35937
  16. 912673
  17. 531441
  18. 35937
  19. 3375
  20. 753571
  21. 68921
  22. 9261
  23. 205379
  24. 39304
  25. 531441
  26. 438976
  27. 205379
  28. 46656
  29. 1728
  30. 2197
  31. 132651
  32. 140608
  33. 421875
  34. 389017
  35. 778688
  36. 226981
  37. 68921
  38. 778688
  39. 17576
  40. 13824

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