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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 847 · 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. 1.73³ =
  2. 2.67³ =
  3. 3.15³ =
  4. 4.16³ =
  5. 5.51³ =
  6. 6.95³ =
  7. 7.65³ =
  8. 8.31³ =
  9. 9.85³ =
  10. 10.81³ =
  11. 11.65³ =
  12. 12.32³ =
  13. 13.88³ =
  14. 14.21³ =
  15. 15.26³ =
  16. 16.45³ =
  17. 17.16³ =
  18. 18.39³ =
  19. 19.41³ =
  20. 20.97³ =
  21. 21.16³ =
  22. 22.44³ =
  23. 23.24³ =
  24. 24.27³ =
  25. 25.63³ =
  26. 26.21³ =
  27. 27.43³ =
  28. 28.19³ =
  29. 29.13³ =
  30. 30.47³ =
  31. 31.17³ =
  32. 32.16³ =
  33. 33.12³ =
  34. 34.47³ =
  35. 35.27³ =
  36. 36.91³ =
  37. 37.69³ =
  38. 38.35³ =
  39. 39.54³ =
  40. 40.69³ =

Answer key

  1. 389017
  2. 300763
  3. 3375
  4. 4096
  5. 132651
  6. 857375
  7. 274625
  8. 29791
  9. 614125
  10. 531441
  11. 274625
  12. 32768
  13. 681472
  14. 9261
  15. 17576
  16. 91125
  17. 4096
  18. 59319
  19. 68921
  20. 912673
  21. 4096
  22. 85184
  23. 13824
  24. 19683
  25. 250047
  26. 9261
  27. 79507
  28. 6859
  29. 2197
  30. 103823
  31. 4913
  32. 4096
  33. 1728
  34. 103823
  35. 19683
  36. 753571
  37. 328509
  38. 42875
  39. 157464
  40. 328509

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