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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 235 · 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. 1.91³ =
  2. 2.28³ =
  3. 3.12³ =
  4. 4.43³ =
  5. 5.61³ =
  6. 6.78³ =
  7. 7.36³ =
  8. 8.47³ =
  9. 9.34³ =
  10. 10.28³ =
  11. 11.42³ =
  12. 12.62³ =
  13. 13.55³ =
  14. 14.54³ =
  15. 15.64³ =
  16. 16.63³ =
  17. 17.34³ =
  18. 18.51³ =
  19. 19.81³ =
  20. 20.61³ =
  21. 21.16³ =
  22. 22.56³ =
  23. 23.49³ =
  24. 24.38³ =
  25. 25.49³ =
  26. 26.94³ =
  27. 27.37³ =
  28. 28.77³ =
  29. 29.48³ =
  30. 30.91³ =
  31. 31.55³ =
  32. 32.33³ =
  33. 33.35³ =
  34. 34.98³ =
  35. 35.56³ =
  36. 36.22³ =
  37. 37.57³ =
  38. 38.82³ =
  39. 39.73³ =
  40. 40.91³ =

Answer key

  1. 753571
  2. 21952
  3. 1728
  4. 79507
  5. 226981
  6. 474552
  7. 46656
  8. 103823
  9. 39304
  10. 21952
  11. 74088
  12. 238328
  13. 166375
  14. 157464
  15. 262144
  16. 250047
  17. 39304
  18. 132651
  19. 531441
  20. 226981
  21. 4096
  22. 175616
  23. 117649
  24. 54872
  25. 117649
  26. 830584
  27. 50653
  28. 456533
  29. 110592
  30. 753571
  31. 166375
  32. 35937
  33. 42875
  34. 941192
  35. 175616
  36. 10648
  37. 185193
  38. 551368
  39. 389017
  40. 753571

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