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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 778 · 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. 1.42³ =
  2. 2.31³ =
  3. 3.84³ =
  4. 4.92³ =
  5. 5.45³ =
  6. 6.66³ =
  7. 7.16³ =
  8. 8.85³ =
  9. 9.65³ =
  10. 10.48³ =
  11. 11.38³ =
  12. 12.35³ =
  13. 13.81³ =
  14. 14.55³ =
  15. 15.73³ =
  16. 16.42³ =
  17. 17.68³ =
  18. 18.25³ =
  19. 19.65³ =
  20. 20.78³ =
  21. 21.33³ =
  22. 22.27³ =
  23. 23.13³ =
  24. 24.21³ =
  25. 25.72³ =
  26. 26.59³ =
  27. 27.51³ =
  28. 28.34³ =
  29. 29.23³ =
  30. 30.71³ =
  31. 31.59³ =
  32. 32.69³ =
  33. 33.21³ =
  34. 34.24³ =
  35. 35.88³ =
  36. 36.18³ =
  37. 37.84³ =
  38. 38.31³ =
  39. 39.36³ =
  40. 40.28³ =

Answer key

  1. 74088
  2. 29791
  3. 592704
  4. 778688
  5. 91125
  6. 287496
  7. 4096
  8. 614125
  9. 274625
  10. 110592
  11. 54872
  12. 42875
  13. 531441
  14. 166375
  15. 389017
  16. 74088
  17. 314432
  18. 15625
  19. 274625
  20. 474552
  21. 35937
  22. 19683
  23. 2197
  24. 9261
  25. 373248
  26. 205379
  27. 132651
  28. 39304
  29. 12167
  30. 357911
  31. 205379
  32. 328509
  33. 9261
  34. 13824
  35. 681472
  36. 5832
  37. 592704
  38. 29791
  39. 46656
  40. 21952

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