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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 998 · 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. 1.63³ =
  2. 2.89³ =
  3. 3.39³ =
  4. 4.66³ =
  5. 5.43³ =
  6. 6.47³ =
  7. 7.33³ =
  8. 8.45³ =
  9. 9.31³ =
  10. 10.29³ =
  11. 11.33³ =
  12. 12.91³ =
  13. 13.69³ =
  14. 14.92³ =
  15. 15.63³ =
  16. 16.34³ =
  17. 17.41³ =
  18. 18.63³ =
  19. 19.44³ =
  20. 20.93³ =
  21. 21.35³ =
  22. 22.18³ =
  23. 23.94³ =
  24. 24.88³ =
  25. 25.81³ =
  26. 26.83³ =
  27. 27.84³ =
  28. 28.93³ =
  29. 29.49³ =
  30. 30.95³ =
  31. 31.37³ =
  32. 32.66³ =
  33. 33.11³ =
  34. 34.98³ =
  35. 35.91³ =
  36. 36.42³ =
  37. 37.56³ =
  38. 38.83³ =
  39. 39.81³ =
  40. 40.55³ =

Answer key

  1. 250047
  2. 704969
  3. 59319
  4. 287496
  5. 79507
  6. 103823
  7. 35937
  8. 91125
  9. 29791
  10. 24389
  11. 35937
  12. 753571
  13. 328509
  14. 778688
  15. 250047
  16. 39304
  17. 68921
  18. 250047
  19. 85184
  20. 804357
  21. 42875
  22. 5832
  23. 830584
  24. 681472
  25. 531441
  26. 571787
  27. 592704
  28. 804357
  29. 117649
  30. 857375
  31. 50653
  32. 287496
  33. 1331
  34. 941192
  35. 753571
  36. 74088
  37. 175616
  38. 571787
  39. 531441
  40. 166375

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