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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 46 · 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. 1.44³ =
  2. 2.27³ =
  3. 3.43³ =
  4. 4.14³ =
  5. 5.86³ =
  6. 6.11³ =
  7. 7.52³ =
  8. 8.77³ =
  9. 9.36³ =
  10. 10.91³ =
  11. 11.35³ =
  12. 12.41³ =
  13. 13.36³ =
  14. 14.56³ =
  15. 15.75³ =
  16. 16.63³ =
  17. 17.23³ =
  18. 18.64³ =
  19. 19.17³ =
  20. 20.12³ =
  21. 21.67³ =
  22. 22.11³ =
  23. 23.41³ =
  24. 24.48³ =
  25. 25.86³ =
  26. 26.47³ =
  27. 27.97³ =
  28. 28.75³ =
  29. 29.31³ =
  30. 30.87³ =
  31. 31.17³ =
  32. 32.87³ =
  33. 33.84³ =
  34. 34.37³ =
  35. 35.41³ =
  36. 36.88³ =
  37. 37.77³ =
  38. 38.58³ =
  39. 39.37³ =
  40. 40.93³ =

Answer key

  1. 85184
  2. 19683
  3. 79507
  4. 2744
  5. 636056
  6. 1331
  7. 140608
  8. 456533
  9. 46656
  10. 753571
  11. 42875
  12. 68921
  13. 46656
  14. 175616
  15. 421875
  16. 250047
  17. 12167
  18. 262144
  19. 4913
  20. 1728
  21. 300763
  22. 1331
  23. 68921
  24. 110592
  25. 636056
  26. 103823
  27. 912673
  28. 421875
  29. 29791
  30. 658503
  31. 4913
  32. 658503
  33. 592704
  34. 50653
  35. 68921
  36. 681472
  37. 456533
  38. 195112
  39. 50653
  40. 804357

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