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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 410 · 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. 1.14³ =
  2. 2.85³ =
  3. 3.77³ =
  4. 4.52³ =
  5. 5.55³ =
  6. 6.14³ =
  7. 7.13³ =
  8. 8.17³ =
  9. 9.56³ =
  10. 10.87³ =
  11. 11.33³ =
  12. 12.62³ =
  13. 13.94³ =
  14. 14.91³ =
  15. 15.64³ =
  16. 16.81³ =
  17. 17.44³ =
  18. 18.39³ =
  19. 19.21³ =
  20. 20.87³ =
  21. 21.92³ =
  22. 22.96³ =
  23. 23.25³ =
  24. 24.12³ =
  25. 25.75³ =
  26. 26.69³ =
  27. 27.82³ =
  28. 28.24³ =
  29. 29.63³ =
  30. 30.21³ =
  31. 31.28³ =
  32. 32.59³ =
  33. 33.32³ =
  34. 34.14³ =
  35. 35.24³ =
  36. 36.68³ =
  37. 37.65³ =
  38. 38.29³ =
  39. 39.45³ =
  40. 40.24³ =

Answer key

  1. 2744
  2. 614125
  3. 456533
  4. 140608
  5. 166375
  6. 2744
  7. 2197
  8. 4913
  9. 175616
  10. 658503
  11. 35937
  12. 238328
  13. 830584
  14. 753571
  15. 262144
  16. 531441
  17. 85184
  18. 59319
  19. 9261
  20. 658503
  21. 778688
  22. 884736
  23. 15625
  24. 1728
  25. 421875
  26. 328509
  27. 551368
  28. 13824
  29. 250047
  30. 9261
  31. 21952
  32. 205379
  33. 32768
  34. 2744
  35. 13824
  36. 314432
  37. 274625
  38. 24389
  39. 91125
  40. 13824

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