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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 163 · 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. 1.64³ =
  2. 2.57³ =
  3. 3.66³ =
  4. 4.31³ =
  5. 5.81³ =
  6. 6.31³ =
  7. 7.93³ =
  8. 8.36³ =
  9. 9.51³ =
  10. 10.87³ =
  11. 11.65³ =
  12. 12.66³ =
  13. 13.31³ =
  14. 14.87³ =
  15. 15.82³ =
  16. 16.47³ =
  17. 17.61³ =
  18. 18.13³ =
  19. 19.97³ =
  20. 20.21³ =
  21. 21.17³ =
  22. 22.19³ =
  23. 23.71³ =
  24. 24.21³ =
  25. 25.25³ =
  26. 26.31³ =
  27. 27.48³ =
  28. 28.28³ =
  29. 29.91³ =
  30. 30.95³ =
  31. 31.56³ =
  32. 32.94³ =
  33. 33.44³ =
  34. 34.54³ =
  35. 35.99³ =
  36. 36.48³ =
  37. 37.29³ =
  38. 38.77³ =
  39. 39.41³ =
  40. 40.52³ =

Answer key

  1. 262144
  2. 185193
  3. 287496
  4. 29791
  5. 531441
  6. 29791
  7. 804357
  8. 46656
  9. 132651
  10. 658503
  11. 274625
  12. 287496
  13. 29791
  14. 658503
  15. 551368
  16. 103823
  17. 226981
  18. 2197
  19. 912673
  20. 9261
  21. 4913
  22. 6859
  23. 357911
  24. 9261
  25. 15625
  26. 29791
  27. 110592
  28. 21952
  29. 753571
  30. 857375
  31. 175616
  32. 830584
  33. 85184
  34. 157464
  35. 970299
  36. 110592
  37. 24389
  38. 456533
  39. 68921
  40. 140608

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