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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 339 · 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. 1.41³ =
  2. 2.22³ =
  3. 3.38³ =
  4. 4.24³ =
  5. 5.62³ =
  6. 6.61³ =
  7. 7.92³ =
  8. 8.58³ =
  9. 9.64³ =
  10. 10.94³ =
  11. 11.37³ =
  12. 12.32³ =
  13. 13.98³ =
  14. 14.23³ =
  15. 15.27³ =
  16. 16.68³ =
  17. 17.91³ =
  18. 18.57³ =
  19. 19.86³ =
  20. 20.93³ =
  21. 21.88³ =
  22. 22.94³ =
  23. 23.63³ =
  24. 24.81³ =
  25. 25.42³ =
  26. 26.48³ =
  27. 27.78³ =
  28. 28.66³ =
  29. 29.52³ =
  30. 30.54³ =
  31. 31.69³ =
  32. 32.35³ =
  33. 33.21³ =
  34. 34.99³ =
  35. 35.39³ =
  36. 36.81³ =
  37. 37.64³ =
  38. 38.99³ =
  39. 39.11³ =
  40. 40.79³ =

Answer key

  1. 68921
  2. 10648
  3. 54872
  4. 13824
  5. 238328
  6. 226981
  7. 778688
  8. 195112
  9. 262144
  10. 830584
  11. 50653
  12. 32768
  13. 941192
  14. 12167
  15. 19683
  16. 314432
  17. 753571
  18. 185193
  19. 636056
  20. 804357
  21. 681472
  22. 830584
  23. 250047
  24. 531441
  25. 74088
  26. 110592
  27. 474552
  28. 287496
  29. 140608
  30. 157464
  31. 328509
  32. 42875
  33. 9261
  34. 970299
  35. 59319
  36. 531441
  37. 262144
  38. 970299
  39. 1331
  40. 493039

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