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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 746 · 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. 1.31³ =
  2. 2.76³ =
  3. 3.34³ =
  4. 4.86³ =
  5. 5.28³ =
  6. 6.25³ =
  7. 7.78³ =
  8. 8.58³ =
  9. 9.83³ =
  10. 10.85³ =
  11. 11.32³ =
  12. 12.32³ =
  13. 13.63³ =
  14. 14.12³ =
  15. 15.29³ =
  16. 16.96³ =
  17. 17.34³ =
  18. 18.39³ =
  19. 19.17³ =
  20. 20.56³ =
  21. 21.33³ =
  22. 22.41³ =
  23. 23.59³ =
  24. 24.53³ =
  25. 25.37³ =
  26. 26.52³ =
  27. 27.26³ =
  28. 28.65³ =
  29. 29.39³ =
  30. 30.52³ =
  31. 31.83³ =
  32. 32.49³ =
  33. 33.92³ =
  34. 34.47³ =
  35. 35.12³ =
  36. 36.11³ =
  37. 37.91³ =
  38. 38.21³ =
  39. 39.87³ =
  40. 40.36³ =

Answer key

  1. 29791
  2. 438976
  3. 39304
  4. 636056
  5. 21952
  6. 15625
  7. 474552
  8. 195112
  9. 571787
  10. 614125
  11. 32768
  12. 32768
  13. 250047
  14. 1728
  15. 24389
  16. 884736
  17. 39304
  18. 59319
  19. 4913
  20. 175616
  21. 35937
  22. 68921
  23. 205379
  24. 148877
  25. 50653
  26. 140608
  27. 17576
  28. 274625
  29. 59319
  30. 140608
  31. 571787
  32. 117649
  33. 778688
  34. 103823
  35. 1728
  36. 1331
  37. 753571
  38. 9261
  39. 658503
  40. 46656

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