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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 288 · 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. 1.71³ =
  2. 2.51³ =
  3. 3.59³ =
  4. 4.23³ =
  5. 5.15³ =
  6. 6.79³ =
  7. 7.87³ =
  8. 8.19³ =
  9. 9.12³ =
  10. 10.37³ =
  11. 11.72³ =
  12. 12.52³ =
  13. 13.66³ =
  14. 14.99³ =
  15. 15.51³ =
  16. 16.66³ =
  17. 17.91³ =
  18. 18.63³ =
  19. 19.94³ =
  20. 20.33³ =
  21. 21.54³ =
  22. 22.36³ =
  23. 23.43³ =
  24. 24.82³ =
  25. 25.72³ =
  26. 26.26³ =
  27. 27.41³ =
  28. 28.35³ =
  29. 29.95³ =
  30. 30.33³ =
  31. 31.66³ =
  32. 32.43³ =
  33. 33.79³ =
  34. 34.99³ =
  35. 35.21³ =
  36. 36.42³ =
  37. 37.26³ =
  38. 38.93³ =
  39. 39.66³ =
  40. 40.63³ =

Answer key

  1. 357911
  2. 132651
  3. 205379
  4. 12167
  5. 3375
  6. 493039
  7. 658503
  8. 6859
  9. 1728
  10. 50653
  11. 373248
  12. 140608
  13. 287496
  14. 970299
  15. 132651
  16. 287496
  17. 753571
  18. 250047
  19. 830584
  20. 35937
  21. 157464
  22. 46656
  23. 79507
  24. 551368
  25. 373248
  26. 17576
  27. 68921
  28. 42875
  29. 857375
  30. 35937
  31. 287496
  32. 79507
  33. 493039
  34. 970299
  35. 9261
  36. 74088
  37. 17576
  38. 804357
  39. 287496
  40. 250047

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