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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 749 · 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. 1.94³ =
  2. 2.11³ =
  3. 3.18³ =
  4. 4.81³ =
  5. 5.44³ =
  6. 6.64³ =
  7. 7.82³ =
  8. 8.94³ =
  9. 9.19³ =
  10. 10.79³ =
  11. 11.23³ =
  12. 12.86³ =
  13. 13.72³ =
  14. 14.15³ =
  15. 15.46³ =
  16. 16.36³ =
  17. 17.47³ =
  18. 18.24³ =
  19. 19.13³ =
  20. 20.34³ =
  21. 21.95³ =
  22. 22.43³ =
  23. 23.21³ =
  24. 24.36³ =
  25. 25.27³ =
  26. 26.88³ =
  27. 27.63³ =
  28. 28.92³ =
  29. 29.85³ =
  30. 30.53³ =
  31. 31.26³ =
  32. 32.96³ =
  33. 33.14³ =
  34. 34.28³ =
  35. 35.19³ =
  36. 36.18³ =
  37. 37.97³ =
  38. 38.57³ =
  39. 39.45³ =
  40. 40.73³ =

Answer key

  1. 830584
  2. 1331
  3. 5832
  4. 531441
  5. 85184
  6. 262144
  7. 551368
  8. 830584
  9. 6859
  10. 493039
  11. 12167
  12. 636056
  13. 373248
  14. 3375
  15. 97336
  16. 46656
  17. 103823
  18. 13824
  19. 2197
  20. 39304
  21. 857375
  22. 79507
  23. 9261
  24. 46656
  25. 19683
  26. 681472
  27. 250047
  28. 778688
  29. 614125
  30. 148877
  31. 17576
  32. 884736
  33. 2744
  34. 21952
  35. 6859
  36. 5832
  37. 912673
  38. 185193
  39. 91125
  40. 389017

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