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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 255 · 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. 1.23³ =
  2. 2.51³ =
  3. 3.95³ =
  4. 4.35³ =
  5. 5.78³ =
  6. 6.68³ =
  7. 7.25³ =
  8. 8.24³ =
  9. 9.16³ =
  10. 10.39³ =
  11. 11.45³ =
  12. 12.23³ =
  13. 13.71³ =
  14. 14.25³ =
  15. 15.77³ =
  16. 16.15³ =
  17. 17.32³ =
  18. 18.91³ =
  19. 19.89³ =
  20. 20.48³ =
  21. 21.92³ =
  22. 22.19³ =
  23. 23.65³ =
  24. 24.68³ =
  25. 25.18³ =
  26. 26.61³ =
  27. 27.61³ =
  28. 28.77³ =
  29. 29.93³ =
  30. 30.19³ =
  31. 31.33³ =
  32. 32.79³ =
  33. 33.87³ =
  34. 34.83³ =
  35. 35.86³ =
  36. 36.61³ =
  37. 37.29³ =
  38. 38.91³ =
  39. 39.17³ =
  40. 40.31³ =

Answer key

  1. 12167
  2. 132651
  3. 857375
  4. 42875
  5. 474552
  6. 314432
  7. 15625
  8. 13824
  9. 4096
  10. 59319
  11. 91125
  12. 12167
  13. 357911
  14. 15625
  15. 456533
  16. 3375
  17. 32768
  18. 753571
  19. 704969
  20. 110592
  21. 778688
  22. 6859
  23. 274625
  24. 314432
  25. 5832
  26. 226981
  27. 226981
  28. 456533
  29. 804357
  30. 6859
  31. 35937
  32. 493039
  33. 658503
  34. 571787
  35. 636056
  36. 226981
  37. 24389
  38. 753571
  39. 4913
  40. 29791

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