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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 930 · 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. 1.34³ =
  2. 2.51³ =
  3. 3.41³ =
  4. 4.16³ =
  5. 5.29³ =
  6. 6.43³ =
  7. 7.18³ =
  8. 8.11³ =
  9. 9.63³ =
  10. 10.65³ =
  11. 11.54³ =
  12. 12.98³ =
  13. 13.79³ =
  14. 14.61³ =
  15. 15.24³ =
  16. 16.47³ =
  17. 17.16³ =
  18. 18.23³ =
  19. 19.51³ =
  20. 20.41³ =
  21. 21.75³ =
  22. 22.84³ =
  23. 23.18³ =
  24. 24.38³ =
  25. 25.76³ =
  26. 26.63³ =
  27. 27.91³ =
  28. 28.12³ =
  29. 29.78³ =
  30. 30.57³ =
  31. 31.56³ =
  32. 32.13³ =
  33. 33.35³ =
  34. 34.48³ =
  35. 35.37³ =
  36. 36.32³ =
  37. 37.27³ =
  38. 38.25³ =
  39. 39.14³ =
  40. 40.13³ =

Answer key

  1. 39304
  2. 132651
  3. 68921
  4. 4096
  5. 24389
  6. 79507
  7. 5832
  8. 1331
  9. 250047
  10. 274625
  11. 157464
  12. 941192
  13. 493039
  14. 226981
  15. 13824
  16. 103823
  17. 4096
  18. 12167
  19. 132651
  20. 68921
  21. 421875
  22. 592704
  23. 5832
  24. 54872
  25. 438976
  26. 250047
  27. 753571
  28. 1728
  29. 474552
  30. 185193
  31. 175616
  32. 2197
  33. 42875
  34. 110592
  35. 50653
  36. 32768
  37. 19683
  38. 15625
  39. 2744
  40. 2197

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