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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 83 · 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. 1.68³ =
  2. 2.16³ =
  3. 3.32³ =
  4. 4.38³ =
  5. 5.39³ =
  6. 6.18³ =
  7. 7.97³ =
  8. 8.63³ =
  9. 9.13³ =
  10. 10.61³ =
  11. 11.93³ =
  12. 12.23³ =
  13. 13.54³ =
  14. 14.95³ =
  15. 15.71³ =
  16. 16.34³ =
  17. 17.76³ =
  18. 18.75³ =
  19. 19.45³ =
  20. 20.72³ =
  21. 21.44³ =
  22. 22.49³ =
  23. 23.98³ =
  24. 24.94³ =
  25. 25.65³ =
  26. 26.63³ =
  27. 27.36³ =
  28. 28.93³ =
  29. 29.87³ =
  30. 30.41³ =
  31. 31.82³ =
  32. 32.55³ =
  33. 33.55³ =
  34. 34.82³ =
  35. 35.48³ =
  36. 36.87³ =
  37. 37.35³ =
  38. 38.97³ =
  39. 39.34³ =
  40. 40.57³ =

Answer key

  1. 314432
  2. 4096
  3. 32768
  4. 54872
  5. 59319
  6. 5832
  7. 912673
  8. 250047
  9. 2197
  10. 226981
  11. 804357
  12. 12167
  13. 157464
  14. 857375
  15. 357911
  16. 39304
  17. 438976
  18. 421875
  19. 91125
  20. 373248
  21. 85184
  22. 117649
  23. 941192
  24. 830584
  25. 274625
  26. 250047
  27. 46656
  28. 804357
  29. 658503
  30. 68921
  31. 551368
  32. 166375
  33. 166375
  34. 551368
  35. 110592
  36. 658503
  37. 42875
  38. 912673
  39. 39304
  40. 185193

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