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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 823 · 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. 1.93³ =
  2. 2.43³ =
  3. 3.71³ =
  4. 4.25³ =
  5. 5.66³ =
  6. 6.31³ =
  7. 7.54³ =
  8. 8.89³ =
  9. 9.85³ =
  10. 10.15³ =
  11. 11.94³ =
  12. 12.61³ =
  13. 13.51³ =
  14. 14.47³ =
  15. 15.87³ =
  16. 16.86³ =
  17. 17.65³ =
  18. 18.69³ =
  19. 19.98³ =
  20. 20.99³ =
  21. 21.27³ =
  22. 22.95³ =
  23. 23.51³ =
  24. 24.84³ =
  25. 25.65³ =
  26. 26.55³ =
  27. 27.86³ =
  28. 28.73³ =
  29. 29.69³ =
  30. 30.93³ =
  31. 31.43³ =
  32. 32.79³ =
  33. 33.48³ =
  34. 34.45³ =
  35. 35.71³ =
  36. 36.98³ =
  37. 37.21³ =
  38. 38.78³ =
  39. 39.71³ =
  40. 40.63³ =

Answer key

  1. 804357
  2. 79507
  3. 357911
  4. 15625
  5. 287496
  6. 29791
  7. 157464
  8. 704969
  9. 614125
  10. 3375
  11. 830584
  12. 226981
  13. 132651
  14. 103823
  15. 658503
  16. 636056
  17. 274625
  18. 328509
  19. 941192
  20. 970299
  21. 19683
  22. 857375
  23. 132651
  24. 592704
  25. 274625
  26. 166375
  27. 636056
  28. 389017
  29. 328509
  30. 804357
  31. 79507
  32. 493039
  33. 110592
  34. 91125
  35. 357911
  36. 941192
  37. 9261
  38. 474552
  39. 357911
  40. 250047

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