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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 705 · 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. 1.88³ =
  2. 2.37³ =
  3. 3.78³ =
  4. 4.23³ =
  5. 5.53³ =
  6. 6.74³ =
  7. 7.11³ =
  8. 8.47³ =
  9. 9.62³ =
  10. 10.29³ =
  11. 11.21³ =
  12. 12.55³ =
  13. 13.73³ =
  14. 14.76³ =
  15. 15.91³ =
  16. 16.61³ =
  17. 17.38³ =
  18. 18.61³ =
  19. 19.44³ =
  20. 20.14³ =
  21. 21.99³ =
  22. 22.88³ =
  23. 23.34³ =
  24. 24.46³ =
  25. 25.76³ =
  26. 26.24³ =
  27. 27.11³ =
  28. 28.64³ =
  29. 29.16³ =
  30. 30.11³ =
  31. 31.16³ =
  32. 32.78³ =
  33. 33.37³ =
  34. 34.26³ =
  35. 35.82³ =
  36. 36.41³ =
  37. 37.86³ =
  38. 38.16³ =
  39. 39.28³ =
  40. 40.48³ =

Answer key

  1. 681472
  2. 50653
  3. 474552
  4. 12167
  5. 148877
  6. 405224
  7. 1331
  8. 103823
  9. 238328
  10. 24389
  11. 9261
  12. 166375
  13. 389017
  14. 438976
  15. 753571
  16. 226981
  17. 54872
  18. 226981
  19. 85184
  20. 2744
  21. 970299
  22. 681472
  23. 39304
  24. 97336
  25. 438976
  26. 13824
  27. 1331
  28. 262144
  29. 4096
  30. 1331
  31. 4096
  32. 474552
  33. 50653
  34. 17576
  35. 551368
  36. 68921
  37. 636056
  38. 4096
  39. 21952
  40. 110592

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