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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 39 · 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. 1.34³ =
  2. 2.63³ =
  3. 3.34³ =
  4. 4.83³ =
  5. 5.61³ =
  6. 6.39³ =
  7. 7.72³ =
  8. 8.77³ =
  9. 9.16³ =
  10. 10.64³ =
  11. 11.78³ =
  12. 12.24³ =
  13. 13.15³ =
  14. 14.29³ =
  15. 15.47³ =
  16. 16.79³ =
  17. 17.42³ =
  18. 18.55³ =
  19. 19.46³ =
  20. 20.94³ =
  21. 21.21³ =
  22. 22.39³ =
  23. 23.34³ =
  24. 24.21³ =
  25. 25.52³ =
  26. 26.86³ =
  27. 27.41³ =
  28. 28.95³ =
  29. 29.71³ =
  30. 30.21³ =
  31. 31.41³ =
  32. 32.21³ =
  33. 33.48³ =
  34. 34.97³ =
  35. 35.36³ =
  36. 36.88³ =
  37. 37.34³ =
  38. 38.45³ =
  39. 39.19³ =
  40. 40.59³ =

Answer key

  1. 39304
  2. 250047
  3. 39304
  4. 571787
  5. 226981
  6. 59319
  7. 373248
  8. 456533
  9. 4096
  10. 262144
  11. 474552
  12. 13824
  13. 3375
  14. 24389
  15. 103823
  16. 493039
  17. 74088
  18. 166375
  19. 97336
  20. 830584
  21. 9261
  22. 59319
  23. 39304
  24. 9261
  25. 140608
  26. 636056
  27. 68921
  28. 857375
  29. 357911
  30. 9261
  31. 68921
  32. 9261
  33. 110592
  34. 912673
  35. 46656
  36. 681472
  37. 39304
  38. 91125
  39. 6859
  40. 205379

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