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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 639 · 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. 1.46³ =
  2. 2.91³ =
  3. 3.27³ =
  4. 4.53³ =
  5. 5.39³ =
  6. 6.42³ =
  7. 7.25³ =
  8. 8.31³ =
  9. 9.47³ =
  10. 10.36³ =
  11. 11.68³ =
  12. 12.44³ =
  13. 13.68³ =
  14. 14.82³ =
  15. 15.38³ =
  16. 16.35³ =
  17. 17.17³ =
  18. 18.99³ =
  19. 19.51³ =
  20. 20.64³ =
  21. 21.28³ =
  22. 22.91³ =
  23. 23.31³ =
  24. 24.87³ =
  25. 25.71³ =
  26. 26.32³ =
  27. 27.67³ =
  28. 28.25³ =
  29. 29.13³ =
  30. 30.24³ =
  31. 31.19³ =
  32. 32.62³ =
  33. 33.15³ =
  34. 34.19³ =
  35. 35.76³ =
  36. 36.33³ =
  37. 37.75³ =
  38. 38.11³ =
  39. 39.94³ =
  40. 40.19³ =

Answer key

  1. 97336
  2. 753571
  3. 19683
  4. 148877
  5. 59319
  6. 74088
  7. 15625
  8. 29791
  9. 103823
  10. 46656
  11. 314432
  12. 85184
  13. 314432
  14. 551368
  15. 54872
  16. 42875
  17. 4913
  18. 970299
  19. 132651
  20. 262144
  21. 21952
  22. 753571
  23. 29791
  24. 658503
  25. 357911
  26. 32768
  27. 300763
  28. 15625
  29. 2197
  30. 13824
  31. 6859
  32. 238328
  33. 3375
  34. 6859
  35. 438976
  36. 35937
  37. 421875
  38. 1331
  39. 830584
  40. 6859

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