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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 610 · 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. 1.83³ =
  2. 2.61³ =
  3. 3.78³ =
  4. 4.16³ =
  5. 5.25³ =
  6. 6.58³ =
  7. 7.63³ =
  8. 8.47³ =
  9. 9.66³ =
  10. 10.63³ =
  11. 11.95³ =
  12. 12.47³ =
  13. 13.17³ =
  14. 14.87³ =
  15. 15.31³ =
  16. 16.31³ =
  17. 17.63³ =
  18. 18.15³ =
  19. 19.75³ =
  20. 20.91³ =
  21. 21.64³ =
  22. 22.17³ =
  23. 23.87³ =
  24. 24.12³ =
  25. 25.57³ =
  26. 26.93³ =
  27. 27.53³ =
  28. 28.61³ =
  29. 29.66³ =
  30. 30.52³ =
  31. 31.81³ =
  32. 32.34³ =
  33. 33.64³ =
  34. 34.92³ =
  35. 35.81³ =
  36. 36.82³ =
  37. 37.21³ =
  38. 38.56³ =
  39. 39.74³ =
  40. 40.36³ =

Answer key

  1. 571787
  2. 226981
  3. 474552
  4. 4096
  5. 15625
  6. 195112
  7. 250047
  8. 103823
  9. 287496
  10. 250047
  11. 857375
  12. 103823
  13. 4913
  14. 658503
  15. 29791
  16. 29791
  17. 250047
  18. 3375
  19. 421875
  20. 753571
  21. 262144
  22. 4913
  23. 658503
  24. 1728
  25. 185193
  26. 804357
  27. 148877
  28. 226981
  29. 287496
  30. 140608
  31. 531441
  32. 39304
  33. 262144
  34. 778688
  35. 531441
  36. 551368
  37. 9261
  38. 175616
  39. 405224
  40. 46656

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