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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 599 · 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. 1.44³ =
  2. 2.64³ =
  3. 3.51³ =
  4. 4.59³ =
  5. 5.12³ =
  6. 6.12³ =
  7. 7.63³ =
  8. 8.41³ =
  9. 9.97³ =
  10. 10.11³ =
  11. 11.45³ =
  12. 12.73³ =
  13. 13.62³ =
  14. 14.88³ =
  15. 15.84³ =
  16. 16.66³ =
  17. 17.56³ =
  18. 18.36³ =
  19. 19.23³ =
  20. 20.77³ =
  21. 21.19³ =
  22. 22.51³ =
  23. 23.22³ =
  24. 24.88³ =
  25. 25.41³ =
  26. 26.45³ =
  27. 27.35³ =
  28. 28.18³ =
  29. 29.34³ =
  30. 30.59³ =
  31. 31.19³ =
  32. 32.89³ =
  33. 33.21³ =
  34. 34.79³ =
  35. 35.22³ =
  36. 36.34³ =
  37. 37.78³ =
  38. 38.81³ =
  39. 39.83³ =
  40. 40.21³ =

Answer key

  1. 85184
  2. 262144
  3. 132651
  4. 205379
  5. 1728
  6. 1728
  7. 250047
  8. 68921
  9. 912673
  10. 1331
  11. 91125
  12. 389017
  13. 238328
  14. 681472
  15. 592704
  16. 287496
  17. 175616
  18. 46656
  19. 12167
  20. 456533
  21. 6859
  22. 132651
  23. 10648
  24. 681472
  25. 68921
  26. 91125
  27. 42875
  28. 5832
  29. 39304
  30. 205379
  31. 6859
  32. 704969
  33. 9261
  34. 493039
  35. 10648
  36. 39304
  37. 474552
  38. 531441
  39. 571787
  40. 9261

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