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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 487 · 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. 1.48³ =
  2. 2.93³ =
  3. 3.65³ =
  4. 4.41³ =
  5. 5.26³ =
  6. 6.11³ =
  7. 7.22³ =
  8. 8.73³ =
  9. 9.24³ =
  10. 10.91³ =
  11. 11.24³ =
  12. 12.33³ =
  13. 13.91³ =
  14. 14.97³ =
  15. 15.79³ =
  16. 16.11³ =
  17. 17.19³ =
  18. 18.61³ =
  19. 19.59³ =
  20. 20.27³ =
  21. 21.54³ =
  22. 22.88³ =
  23. 23.59³ =
  24. 24.64³ =
  25. 25.95³ =
  26. 26.32³ =
  27. 27.63³ =
  28. 28.67³ =
  29. 29.36³ =
  30. 30.23³ =
  31. 31.77³ =
  32. 32.64³ =
  33. 33.98³ =
  34. 34.21³ =
  35. 35.17³ =
  36. 36.61³ =
  37. 37.43³ =
  38. 38.47³ =
  39. 39.21³ =
  40. 40.64³ =

Answer key

  1. 110592
  2. 804357
  3. 274625
  4. 68921
  5. 17576
  6. 1331
  7. 10648
  8. 389017
  9. 13824
  10. 753571
  11. 13824
  12. 35937
  13. 753571
  14. 912673
  15. 493039
  16. 1331
  17. 6859
  18. 226981
  19. 205379
  20. 19683
  21. 157464
  22. 681472
  23. 205379
  24. 262144
  25. 857375
  26. 32768
  27. 250047
  28. 300763
  29. 46656
  30. 12167
  31. 456533
  32. 262144
  33. 941192
  34. 9261
  35. 4913
  36. 226981
  37. 79507
  38. 103823
  39. 9261
  40. 262144

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