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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 204 · 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. 1.41³ =
  2. 2.74³ =
  3. 3.33³ =
  4. 4.14³ =
  5. 5.67³ =
  6. 6.23³ =
  7. 7.21³ =
  8. 8.11³ =
  9. 9.91³ =
  10. 10.47³ =
  11. 11.24³ =
  12. 12.81³ =
  13. 13.35³ =
  14. 14.18³ =
  15. 15.91³ =
  16. 16.78³ =
  17. 17.17³ =
  18. 18.28³ =
  19. 19.75³ =
  20. 20.65³ =
  21. 21.26³ =
  22. 22.21³ =
  23. 23.51³ =
  24. 24.58³ =
  25. 25.56³ =
  26. 26.27³ =
  27. 27.63³ =
  28. 28.19³ =
  29. 29.43³ =
  30. 30.71³ =
  31. 31.95³ =
  32. 32.17³ =
  33. 33.94³ =
  34. 34.81³ =
  35. 35.66³ =
  36. 36.79³ =
  37. 37.15³ =
  38. 38.72³ =
  39. 39.35³ =
  40. 40.21³ =

Answer key

  1. 68921
  2. 405224
  3. 35937
  4. 2744
  5. 300763
  6. 12167
  7. 9261
  8. 1331
  9. 753571
  10. 103823
  11. 13824
  12. 531441
  13. 42875
  14. 5832
  15. 753571
  16. 474552
  17. 4913
  18. 21952
  19. 421875
  20. 274625
  21. 17576
  22. 9261
  23. 132651
  24. 195112
  25. 175616
  26. 19683
  27. 250047
  28. 6859
  29. 79507
  30. 357911
  31. 857375
  32. 4913
  33. 830584
  34. 531441
  35. 287496
  36. 493039
  37. 3375
  38. 373248
  39. 42875
  40. 9261

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