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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 664 · 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. 1.36³ =
  2. 2.11³ =
  3. 3.69³ =
  4. 4.97³ =
  5. 5.17³ =
  6. 6.24³ =
  7. 7.73³ =
  8. 8.95³ =
  9. 9.44³ =
  10. 10.38³ =
  11. 11.81³ =
  12. 12.79³ =
  13. 13.95³ =
  14. 14.94³ =
  15. 15.41³ =
  16. 16.34³ =
  17. 17.39³ =
  18. 18.17³ =
  19. 19.73³ =
  20. 20.88³ =
  21. 21.25³ =
  22. 22.47³ =
  23. 23.37³ =
  24. 24.12³ =
  25. 25.91³ =
  26. 26.85³ =
  27. 27.35³ =
  28. 28.74³ =
  29. 29.52³ =
  30. 30.87³ =
  31. 31.29³ =
  32. 32.34³ =
  33. 33.34³ =
  34. 34.35³ =
  35. 35.36³ =
  36. 36.72³ =
  37. 37.97³ =
  38. 38.14³ =
  39. 39.41³ =
  40. 40.82³ =

Answer key

  1. 46656
  2. 1331
  3. 328509
  4. 912673
  5. 4913
  6. 13824
  7. 389017
  8. 857375
  9. 85184
  10. 54872
  11. 531441
  12. 493039
  13. 857375
  14. 830584
  15. 68921
  16. 39304
  17. 59319
  18. 4913
  19. 389017
  20. 681472
  21. 15625
  22. 103823
  23. 50653
  24. 1728
  25. 753571
  26. 614125
  27. 42875
  28. 405224
  29. 140608
  30. 658503
  31. 24389
  32. 39304
  33. 39304
  34. 42875
  35. 46656
  36. 373248
  37. 912673
  38. 2744
  39. 68921
  40. 551368

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