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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 681 · 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. 1.79³ =
  2. 2.92³ =
  3. 3.59³ =
  4. 4.87³ =
  5. 5.49³ =
  6. 6.55³ =
  7. 7.54³ =
  8. 8.67³ =
  9. 9.84³ =
  10. 10.46³ =
  11. 11.49³ =
  12. 12.74³ =
  13. 13.23³ =
  14. 14.46³ =
  15. 15.54³ =
  16. 16.34³ =
  17. 17.45³ =
  18. 18.15³ =
  19. 19.12³ =
  20. 20.56³ =
  21. 21.22³ =
  22. 22.61³ =
  23. 23.31³ =
  24. 24.84³ =
  25. 25.11³ =
  26. 26.84³ =
  27. 27.66³ =
  28. 28.52³ =
  29. 29.19³ =
  30. 30.89³ =
  31. 31.71³ =
  32. 32.44³ =
  33. 33.25³ =
  34. 34.94³ =
  35. 35.15³ =
  36. 36.84³ =
  37. 37.61³ =
  38. 38.44³ =
  39. 39.56³ =
  40. 40.72³ =

Answer key

  1. 493039
  2. 778688
  3. 205379
  4. 658503
  5. 117649
  6. 166375
  7. 157464
  8. 300763
  9. 592704
  10. 97336
  11. 117649
  12. 405224
  13. 12167
  14. 97336
  15. 157464
  16. 39304
  17. 91125
  18. 3375
  19. 1728
  20. 175616
  21. 10648
  22. 226981
  23. 29791
  24. 592704
  25. 1331
  26. 592704
  27. 287496
  28. 140608
  29. 6859
  30. 704969
  31. 357911
  32. 85184
  33. 15625
  34. 830584
  35. 3375
  36. 592704
  37. 226981
  38. 85184
  39. 175616
  40. 373248

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