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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 590 · 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. 1.54³ =
  2. 2.21³ =
  3. 3.25³ =
  4. 4.43³ =
  5. 5.86³ =
  6. 6.58³ =
  7. 7.51³ =
  8. 8.11³ =
  9. 9.21³ =
  10. 10.35³ =
  11. 11.63³ =
  12. 12.12³ =
  13. 13.23³ =
  14. 14.99³ =
  15. 15.28³ =
  16. 16.81³ =
  17. 17.21³ =
  18. 18.14³ =
  19. 19.21³ =
  20. 20.31³ =
  21. 21.62³ =
  22. 22.72³ =
  23. 23.26³ =
  24. 24.64³ =
  25. 25.16³ =
  26. 26.71³ =
  27. 27.85³ =
  28. 28.18³ =
  29. 29.71³ =
  30. 30.72³ =
  31. 31.41³ =
  32. 32.91³ =
  33. 33.54³ =
  34. 34.98³ =
  35. 35.79³ =
  36. 36.86³ =
  37. 37.77³ =
  38. 38.35³ =
  39. 39.87³ =
  40. 40.46³ =

Answer key

  1. 157464
  2. 9261
  3. 15625
  4. 79507
  5. 636056
  6. 195112
  7. 132651
  8. 1331
  9. 9261
  10. 42875
  11. 250047
  12. 1728
  13. 12167
  14. 970299
  15. 21952
  16. 531441
  17. 9261
  18. 2744
  19. 9261
  20. 29791
  21. 238328
  22. 373248
  23. 17576
  24. 262144
  25. 4096
  26. 357911
  27. 614125
  28. 5832
  29. 357911
  30. 373248
  31. 68921
  32. 753571
  33. 157464
  34. 941192
  35. 493039
  36. 636056
  37. 456533
  38. 42875
  39. 658503
  40. 97336

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