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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 897 · 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. 1.82³ =
  2. 2.55³ =
  3. 3.91³ =
  4. 4.98³ =
  5. 5.95³ =
  6. 6.95³ =
  7. 7.66³ =
  8. 8.39³ =
  9. 9.31³ =
  10. 10.31³ =
  11. 11.91³ =
  12. 12.97³ =
  13. 13.42³ =
  14. 14.67³ =
  15. 15.31³ =
  16. 16.94³ =
  17. 17.49³ =
  18. 18.37³ =
  19. 19.58³ =
  20. 20.43³ =
  21. 21.61³ =
  22. 22.21³ =
  23. 23.42³ =
  24. 24.54³ =
  25. 25.51³ =
  26. 26.77³ =
  27. 27.63³ =
  28. 28.94³ =
  29. 29.21³ =
  30. 30.41³ =
  31. 31.28³ =
  32. 32.87³ =
  33. 33.17³ =
  34. 34.83³ =
  35. 35.59³ =
  36. 36.98³ =
  37. 37.27³ =
  38. 38.95³ =
  39. 39.64³ =
  40. 40.19³ =

Answer key

  1. 551368
  2. 166375
  3. 753571
  4. 941192
  5. 857375
  6. 857375
  7. 287496
  8. 59319
  9. 29791
  10. 29791
  11. 753571
  12. 912673
  13. 74088
  14. 300763
  15. 29791
  16. 830584
  17. 117649
  18. 50653
  19. 195112
  20. 79507
  21. 226981
  22. 9261
  23. 74088
  24. 157464
  25. 132651
  26. 456533
  27. 250047
  28. 830584
  29. 9261
  30. 68921
  31. 21952
  32. 658503
  33. 4913
  34. 571787
  35. 205379
  36. 941192
  37. 19683
  38. 857375
  39. 262144
  40. 6859

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