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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 375 · 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. 1.97³ =
  2. 2.15³ =
  3. 3.99³ =
  4. 4.48³ =
  5. 5.73³ =
  6. 6.43³ =
  7. 7.32³ =
  8. 8.31³ =
  9. 9.21³ =
  10. 10.28³ =
  11. 11.18³ =
  12. 12.33³ =
  13. 13.85³ =
  14. 14.39³ =
  15. 15.43³ =
  16. 16.46³ =
  17. 17.21³ =
  18. 18.56³ =
  19. 19.41³ =
  20. 20.32³ =
  21. 21.63³ =
  22. 22.42³ =
  23. 23.52³ =
  24. 24.34³ =
  25. 25.64³ =
  26. 26.51³ =
  27. 27.33³ =
  28. 28.45³ =
  29. 29.53³ =
  30. 30.52³ =
  31. 31.81³ =
  32. 32.91³ =
  33. 33.19³ =
  34. 34.79³ =
  35. 35.72³ =
  36. 36.11³ =
  37. 37.68³ =
  38. 38.71³ =
  39. 39.47³ =
  40. 40.63³ =

Answer key

  1. 912673
  2. 3375
  3. 970299
  4. 110592
  5. 389017
  6. 79507
  7. 32768
  8. 29791
  9. 9261
  10. 21952
  11. 5832
  12. 35937
  13. 614125
  14. 59319
  15. 79507
  16. 97336
  17. 9261
  18. 175616
  19. 68921
  20. 32768
  21. 250047
  22. 74088
  23. 140608
  24. 39304
  25. 262144
  26. 132651
  27. 35937
  28. 91125
  29. 148877
  30. 140608
  31. 531441
  32. 753571
  33. 6859
  34. 493039
  35. 373248
  36. 1331
  37. 314432
  38. 357911
  39. 103823
  40. 250047

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