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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 989 · 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. 1.45³ =
  2. 2.22³ =
  3. 3.63³ =
  4. 4.53³ =
  5. 5.91³ =
  6. 6.45³ =
  7. 7.15³ =
  8. 8.24³ =
  9. 9.73³ =
  10. 10.13³ =
  11. 11.86³ =
  12. 12.95³ =
  13. 13.59³ =
  14. 14.47³ =
  15. 15.41³ =
  16. 16.22³ =
  17. 17.15³ =
  18. 18.31³ =
  19. 19.93³ =
  20. 20.45³ =
  21. 21.69³ =
  22. 22.22³ =
  23. 23.41³ =
  24. 24.26³ =
  25. 25.14³ =
  26. 26.94³ =
  27. 27.13³ =
  28. 28.96³ =
  29. 29.99³ =
  30. 30.75³ =
  31. 31.23³ =
  32. 32.61³ =
  33. 33.39³ =
  34. 34.93³ =
  35. 35.35³ =
  36. 36.48³ =
  37. 37.36³ =
  38. 38.52³ =
  39. 39.57³ =
  40. 40.49³ =

Answer key

  1. 91125
  2. 10648
  3. 250047
  4. 148877
  5. 753571
  6. 91125
  7. 3375
  8. 13824
  9. 389017
  10. 2197
  11. 636056
  12. 857375
  13. 205379
  14. 103823
  15. 68921
  16. 10648
  17. 3375
  18. 29791
  19. 804357
  20. 91125
  21. 328509
  22. 10648
  23. 68921
  24. 17576
  25. 2744
  26. 830584
  27. 2197
  28. 884736
  29. 970299
  30. 421875
  31. 12167
  32. 226981
  33. 59319
  34. 804357
  35. 42875
  36. 110592
  37. 46656
  38. 140608
  39. 185193
  40. 117649

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