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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 239 · 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. 1.95³ =
  2. 2.51³ =
  3. 3.97³ =
  4. 4.68³ =
  5. 5.11³ =
  6. 6.88³ =
  7. 7.78³ =
  8. 8.82³ =
  9. 9.92³ =
  10. 10.68³ =
  11. 11.81³ =
  12. 12.64³ =
  13. 13.75³ =
  14. 14.14³ =
  15. 15.31³ =
  16. 16.13³ =
  17. 17.38³ =
  18. 18.28³ =
  19. 19.92³ =
  20. 20.17³ =
  21. 21.85³ =
  22. 22.16³ =
  23. 23.62³ =
  24. 24.68³ =
  25. 25.47³ =
  26. 26.13³ =
  27. 27.34³ =
  28. 28.49³ =
  29. 29.33³ =
  30. 30.22³ =
  31. 31.92³ =
  32. 32.57³ =
  33. 33.17³ =
  34. 34.27³ =
  35. 35.19³ =
  36. 36.71³ =
  37. 37.18³ =
  38. 38.78³ =
  39. 39.21³ =
  40. 40.48³ =

Answer key

  1. 857375
  2. 132651
  3. 912673
  4. 314432
  5. 1331
  6. 681472
  7. 474552
  8. 551368
  9. 778688
  10. 314432
  11. 531441
  12. 262144
  13. 421875
  14. 2744
  15. 29791
  16. 2197
  17. 54872
  18. 21952
  19. 778688
  20. 4913
  21. 614125
  22. 4096
  23. 238328
  24. 314432
  25. 103823
  26. 2197
  27. 39304
  28. 117649
  29. 35937
  30. 10648
  31. 778688
  32. 185193
  33. 4913
  34. 19683
  35. 6859
  36. 357911
  37. 5832
  38. 474552
  39. 9261
  40. 110592

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