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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 495 · 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. 1.76³ =
  2. 2.54³ =
  3. 3.64³ =
  4. 4.75³ =
  5. 5.43³ =
  6. 6.81³ =
  7. 7.36³ =
  8. 8.91³ =
  9. 9.75³ =
  10. 10.48³ =
  11. 11.16³ =
  12. 12.18³ =
  13. 13.66³ =
  14. 14.96³ =
  15. 15.38³ =
  16. 16.68³ =
  17. 17.56³ =
  18. 18.61³ =
  19. 19.65³ =
  20. 20.98³ =
  21. 21.89³ =
  22. 22.78³ =
  23. 23.94³ =
  24. 24.65³ =
  25. 25.33³ =
  26. 26.71³ =
  27. 27.99³ =
  28. 28.54³ =
  29. 29.52³ =
  30. 30.37³ =
  31. 31.47³ =
  32. 32.75³ =
  33. 33.62³ =
  34. 34.73³ =
  35. 35.39³ =
  36. 36.28³ =
  37. 37.63³ =
  38. 38.12³ =
  39. 39.34³ =
  40. 40.51³ =

Answer key

  1. 438976
  2. 157464
  3. 262144
  4. 421875
  5. 79507
  6. 531441
  7. 46656
  8. 753571
  9. 421875
  10. 110592
  11. 4096
  12. 5832
  13. 287496
  14. 884736
  15. 54872
  16. 314432
  17. 175616
  18. 226981
  19. 274625
  20. 941192
  21. 704969
  22. 474552
  23. 830584
  24. 274625
  25. 35937
  26. 357911
  27. 970299
  28. 157464
  29. 140608
  30. 50653
  31. 103823
  32. 421875
  33. 238328
  34. 389017
  35. 59319
  36. 21952
  37. 250047
  38. 1728
  39. 39304
  40. 132651

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