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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 186 · 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. 1.65³ =
  2. 2.14³ =
  3. 3.61³ =
  4. 4.11³ =
  5. 5.91³ =
  6. 6.61³ =
  7. 7.99³ =
  8. 8.14³ =
  9. 9.39³ =
  10. 10.97³ =
  11. 11.33³ =
  12. 12.89³ =
  13. 13.24³ =
  14. 14.16³ =
  15. 15.98³ =
  16. 16.48³ =
  17. 17.87³ =
  18. 18.52³ =
  19. 19.51³ =
  20. 20.59³ =
  21. 21.84³ =
  22. 22.76³ =
  23. 23.68³ =
  24. 24.33³ =
  25. 25.25³ =
  26. 26.34³ =
  27. 27.39³ =
  28. 28.14³ =
  29. 29.32³ =
  30. 30.37³ =
  31. 31.71³ =
  32. 32.99³ =
  33. 33.51³ =
  34. 34.61³ =
  35. 35.15³ =
  36. 36.47³ =
  37. 37.96³ =
  38. 38.19³ =
  39. 39.32³ =
  40. 40.79³ =

Answer key

  1. 274625
  2. 2744
  3. 226981
  4. 1331
  5. 753571
  6. 226981
  7. 970299
  8. 2744
  9. 59319
  10. 912673
  11. 35937
  12. 704969
  13. 13824
  14. 4096
  15. 941192
  16. 110592
  17. 658503
  18. 140608
  19. 132651
  20. 205379
  21. 592704
  22. 438976
  23. 314432
  24. 35937
  25. 15625
  26. 39304
  27. 59319
  28. 2744
  29. 32768
  30. 50653
  31. 357911
  32. 970299
  33. 132651
  34. 226981
  35. 3375
  36. 103823
  37. 884736
  38. 6859
  39. 32768
  40. 493039

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