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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 736 · 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. 2.81³ =
  3. 3.18³ =
  4. 4.23³ =
  5. 5.76³ =
  6. 6.47³ =
  7. 7.15³ =
  8. 8.52³ =
  9. 9.85³ =
  10. 10.61³ =
  11. 11.16³ =
  12. 12.13³ =
  13. 13.69³ =
  14. 14.29³ =
  15. 15.39³ =
  16. 16.43³ =
  17. 17.63³ =
  18. 18.16³ =
  19. 19.85³ =
  20. 20.99³ =
  21. 21.57³ =
  22. 22.72³ =
  23. 23.21³ =
  24. 24.46³ =
  25. 25.55³ =
  26. 26.39³ =
  27. 27.66³ =
  28. 28.24³ =
  29. 29.61³ =
  30. 30.63³ =
  31. 31.58³ =
  32. 32.58³ =
  33. 33.49³ =
  34. 34.68³ =
  35. 35.48³ =
  36. 36.79³ =
  37. 37.78³ =
  38. 38.41³ =
  39. 39.85³ =
  40. 40.66³ =

Answer key

  1. 830584
  2. 531441
  3. 5832
  4. 12167
  5. 438976
  6. 103823
  7. 3375
  8. 140608
  9. 614125
  10. 226981
  11. 4096
  12. 2197
  13. 328509
  14. 24389
  15. 59319
  16. 79507
  17. 250047
  18. 4096
  19. 614125
  20. 970299
  21. 185193
  22. 373248
  23. 9261
  24. 97336
  25. 166375
  26. 59319
  27. 287496
  28. 13824
  29. 226981
  30. 250047
  31. 195112
  32. 195112
  33. 117649
  34. 314432
  35. 110592
  36. 493039
  37. 474552
  38. 68921
  39. 614125
  40. 287496

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