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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 17 · 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. 1.47³ =
  2. 2.68³ =
  3. 3.36³ =
  4. 4.67³ =
  5. 5.66³ =
  6. 6.15³ =
  7. 7.44³ =
  8. 8.15³ =
  9. 9.39³ =
  10. 10.51³ =
  11. 11.63³ =
  12. 12.32³ =
  13. 13.67³ =
  14. 14.92³ =
  15. 15.22³ =
  16. 16.33³ =
  17. 17.21³ =
  18. 18.68³ =
  19. 19.71³ =
  20. 20.86³ =
  21. 21.71³ =
  22. 22.11³ =
  23. 23.21³ =
  24. 24.59³ =
  25. 25.37³ =
  26. 26.31³ =
  27. 27.91³ =
  28. 28.63³ =
  29. 29.99³ =
  30. 30.79³ =
  31. 31.56³ =
  32. 32.48³ =
  33. 33.35³ =
  34. 34.67³ =
  35. 35.21³ =
  36. 36.95³ =
  37. 37.18³ =
  38. 38.74³ =
  39. 39.28³ =
  40. 40.24³ =

Answer key

  1. 103823
  2. 314432
  3. 46656
  4. 300763
  5. 287496
  6. 3375
  7. 85184
  8. 3375
  9. 59319
  10. 132651
  11. 250047
  12. 32768
  13. 300763
  14. 778688
  15. 10648
  16. 35937
  17. 9261
  18. 314432
  19. 357911
  20. 636056
  21. 357911
  22. 1331
  23. 9261
  24. 205379
  25. 50653
  26. 29791
  27. 753571
  28. 250047
  29. 970299
  30. 493039
  31. 175616
  32. 110592
  33. 42875
  34. 300763
  35. 9261
  36. 857375
  37. 5832
  38. 405224
  39. 21952
  40. 13824

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