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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 75 · 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. 1.66³ =
  2. 2.62³ =
  3. 3.31³ =
  4. 4.66³ =
  5. 5.14³ =
  6. 6.21³ =
  7. 7.76³ =
  8. 8.29³ =
  9. 9.57³ =
  10. 10.94³ =
  11. 11.71³ =
  12. 12.48³ =
  13. 13.37³ =
  14. 14.44³ =
  15. 15.61³ =
  16. 16.24³ =
  17. 17.76³ =
  18. 18.31³ =
  19. 19.61³ =
  20. 20.33³ =
  21. 21.54³ =
  22. 22.88³ =
  23. 23.61³ =
  24. 24.23³ =
  25. 25.71³ =
  26. 26.21³ =
  27. 27.21³ =
  28. 28.24³ =
  29. 29.43³ =
  30. 30.98³ =
  31. 31.11³ =
  32. 32.96³ =
  33. 33.44³ =
  34. 34.95³ =
  35. 35.21³ =
  36. 36.19³ =
  37. 37.65³ =
  38. 38.31³ =
  39. 39.75³ =
  40. 40.17³ =

Answer key

  1. 287496
  2. 238328
  3. 29791
  4. 287496
  5. 2744
  6. 9261
  7. 438976
  8. 24389
  9. 185193
  10. 830584
  11. 357911
  12. 110592
  13. 50653
  14. 85184
  15. 226981
  16. 13824
  17. 438976
  18. 29791
  19. 226981
  20. 35937
  21. 157464
  22. 681472
  23. 226981
  24. 12167
  25. 357911
  26. 9261
  27. 9261
  28. 13824
  29. 79507
  30. 941192
  31. 1331
  32. 884736
  33. 85184
  34. 857375
  35. 9261
  36. 6859
  37. 274625
  38. 29791
  39. 421875
  40. 4913

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