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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 711 · 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. 1.19³ =
  2. 2.43³ =
  3. 3.28³ =
  4. 4.62³ =
  5. 5.54³ =
  6. 6.35³ =
  7. 7.76³ =
  8. 8.76³ =
  9. 9.29³ =
  10. 10.99³ =
  11. 11.61³ =
  12. 12.51³ =
  13. 13.19³ =
  14. 14.55³ =
  15. 15.79³ =
  16. 16.43³ =
  17. 17.81³ =
  18. 18.81³ =
  19. 19.91³ =
  20. 20.55³ =
  21. 21.55³ =
  22. 22.63³ =
  23. 23.28³ =
  24. 24.18³ =
  25. 25.47³ =
  26. 26.54³ =
  27. 27.65³ =
  28. 28.56³ =
  29. 29.31³ =
  30. 30.57³ =
  31. 31.17³ =
  32. 32.58³ =
  33. 33.98³ =
  34. 34.74³ =
  35. 35.37³ =
  36. 36.83³ =
  37. 37.81³ =
  38. 38.85³ =
  39. 39.87³ =
  40. 40.83³ =

Answer key

  1. 6859
  2. 79507
  3. 21952
  4. 238328
  5. 157464
  6. 42875
  7. 438976
  8. 438976
  9. 24389
  10. 970299
  11. 226981
  12. 132651
  13. 6859
  14. 166375
  15. 493039
  16. 79507
  17. 531441
  18. 531441
  19. 753571
  20. 166375
  21. 166375
  22. 250047
  23. 21952
  24. 5832
  25. 103823
  26. 157464
  27. 274625
  28. 175616
  29. 29791
  30. 185193
  31. 4913
  32. 195112
  33. 941192
  34. 405224
  35. 50653
  36. 571787
  37. 531441
  38. 614125
  39. 658503
  40. 571787

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