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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 694 · 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. 1.17³ =
  2. 2.72³ =
  3. 3.31³ =
  4. 4.34³ =
  5. 5.62³ =
  6. 6.18³ =
  7. 7.91³ =
  8. 8.97³ =
  9. 9.99³ =
  10. 10.28³ =
  11. 11.95³ =
  12. 12.33³ =
  13. 13.79³ =
  14. 14.28³ =
  15. 15.26³ =
  16. 16.86³ =
  17. 17.51³ =
  18. 18.71³ =
  19. 19.62³ =
  20. 20.76³ =
  21. 21.63³ =
  22. 22.47³ =
  23. 23.49³ =
  24. 24.61³ =
  25. 25.76³ =
  26. 26.82³ =
  27. 27.71³ =
  28. 28.44³ =
  29. 29.24³ =
  30. 30.49³ =
  31. 31.34³ =
  32. 32.57³ =
  33. 33.32³ =
  34. 34.11³ =
  35. 35.41³ =
  36. 36.47³ =
  37. 37.94³ =
  38. 38.16³ =
  39. 39.42³ =
  40. 40.71³ =

Answer key

  1. 4913
  2. 373248
  3. 29791
  4. 39304
  5. 238328
  6. 5832
  7. 753571
  8. 912673
  9. 970299
  10. 21952
  11. 857375
  12. 35937
  13. 493039
  14. 21952
  15. 17576
  16. 636056
  17. 132651
  18. 357911
  19. 238328
  20. 438976
  21. 250047
  22. 103823
  23. 117649
  24. 226981
  25. 438976
  26. 551368
  27. 357911
  28. 85184
  29. 13824
  30. 117649
  31. 39304
  32. 185193
  33. 32768
  34. 1331
  35. 68921
  36. 103823
  37. 830584
  38. 4096
  39. 74088
  40. 357911

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