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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 516 · 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. 1.81³ =
  2. 2.12³ =
  3. 3.31³ =
  4. 4.67³ =
  5. 5.14³ =
  6. 6.63³ =
  7. 7.48³ =
  8. 8.31³ =
  9. 9.65³ =
  10. 10.15³ =
  11. 11.28³ =
  12. 12.41³ =
  13. 13.91³ =
  14. 14.31³ =
  15. 15.56³ =
  16. 16.79³ =
  17. 17.83³ =
  18. 18.88³ =
  19. 19.88³ =
  20. 20.18³ =
  21. 21.43³ =
  22. 22.11³ =
  23. 23.15³ =
  24. 24.62³ =
  25. 25.91³ =
  26. 26.87³ =
  27. 27.25³ =
  28. 28.98³ =
  29. 29.53³ =
  30. 30.98³ =
  31. 31.25³ =
  32. 32.47³ =
  33. 33.42³ =
  34. 34.21³ =
  35. 35.95³ =
  36. 36.49³ =
  37. 37.96³ =
  38. 38.81³ =
  39. 39.53³ =
  40. 40.46³ =

Answer key

  1. 531441
  2. 1728
  3. 29791
  4. 300763
  5. 2744
  6. 250047
  7. 110592
  8. 29791
  9. 274625
  10. 3375
  11. 21952
  12. 68921
  13. 753571
  14. 29791
  15. 175616
  16. 493039
  17. 571787
  18. 681472
  19. 681472
  20. 5832
  21. 79507
  22. 1331
  23. 3375
  24. 238328
  25. 753571
  26. 658503
  27. 15625
  28. 941192
  29. 148877
  30. 941192
  31. 15625
  32. 103823
  33. 74088
  34. 9261
  35. 857375
  36. 117649
  37. 884736
  38. 531441
  39. 148877
  40. 97336

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