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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 667 · 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. 1.65³ =
  2. 2.87³ =
  3. 3.14³ =
  4. 4.61³ =
  5. 5.77³ =
  6. 6.68³ =
  7. 7.24³ =
  8. 8.37³ =
  9. 9.57³ =
  10. 10.52³ =
  11. 11.97³ =
  12. 12.86³ =
  13. 13.14³ =
  14. 14.42³ =
  15. 15.53³ =
  16. 16.56³ =
  17. 17.92³ =
  18. 18.93³ =
  19. 19.75³ =
  20. 20.21³ =
  21. 21.93³ =
  22. 22.34³ =
  23. 23.12³ =
  24. 24.62³ =
  25. 25.41³ =
  26. 26.95³ =
  27. 27.69³ =
  28. 28.67³ =
  29. 29.15³ =
  30. 30.16³ =
  31. 31.49³ =
  32. 32.35³ =
  33. 33.94³ =
  34. 34.56³ =
  35. 35.71³ =
  36. 36.83³ =
  37. 37.91³ =
  38. 38.22³ =
  39. 39.11³ =
  40. 40.37³ =

Answer key

  1. 274625
  2. 658503
  3. 2744
  4. 226981
  5. 456533
  6. 314432
  7. 13824
  8. 50653
  9. 185193
  10. 140608
  11. 912673
  12. 636056
  13. 2744
  14. 74088
  15. 148877
  16. 175616
  17. 778688
  18. 804357
  19. 421875
  20. 9261
  21. 804357
  22. 39304
  23. 1728
  24. 238328
  25. 68921
  26. 857375
  27. 328509
  28. 300763
  29. 3375
  30. 4096
  31. 117649
  32. 42875
  33. 830584
  34. 175616
  35. 357911
  36. 571787
  37. 753571
  38. 10648
  39. 1331
  40. 50653

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