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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 864 · 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. 1.27³ =
  2. 2.64³ =
  3. 3.11³ =
  4. 4.42³ =
  5. 5.18³ =
  6. 6.71³ =
  7. 7.62³ =
  8. 8.11³ =
  9. 9.87³ =
  10. 10.71³ =
  11. 11.31³ =
  12. 12.63³ =
  13. 13.92³ =
  14. 14.11³ =
  15. 15.92³ =
  16. 16.22³ =
  17. 17.66³ =
  18. 18.14³ =
  19. 19.15³ =
  20. 20.46³ =
  21. 21.57³ =
  22. 22.24³ =
  23. 23.67³ =
  24. 24.24³ =
  25. 25.76³ =
  26. 26.68³ =
  27. 27.61³ =
  28. 28.48³ =
  29. 29.72³ =
  30. 30.66³ =
  31. 31.61³ =
  32. 32.84³ =
  33. 33.14³ =
  34. 34.29³ =
  35. 35.62³ =
  36. 36.74³ =
  37. 37.49³ =
  38. 38.18³ =
  39. 39.84³ =
  40. 40.19³ =

Answer key

  1. 19683
  2. 262144
  3. 1331
  4. 74088
  5. 5832
  6. 357911
  7. 238328
  8. 1331
  9. 658503
  10. 357911
  11. 29791
  12. 250047
  13. 778688
  14. 1331
  15. 778688
  16. 10648
  17. 287496
  18. 2744
  19. 3375
  20. 97336
  21. 185193
  22. 13824
  23. 300763
  24. 13824
  25. 438976
  26. 314432
  27. 226981
  28. 110592
  29. 373248
  30. 287496
  31. 226981
  32. 592704
  33. 2744
  34. 24389
  35. 238328
  36. 405224
  37. 117649
  38. 5832
  39. 592704
  40. 6859

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