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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 457 · 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. 1.18³ =
  2. 2.93³ =
  3. 3.88³ =
  4. 4.66³ =
  5. 5.63³ =
  6. 6.59³ =
  7. 7.99³ =
  8. 8.94³ =
  9. 9.87³ =
  10. 10.77³ =
  11. 11.91³ =
  12. 12.31³ =
  13. 13.92³ =
  14. 14.14³ =
  15. 15.91³ =
  16. 16.71³ =
  17. 17.25³ =
  18. 18.16³ =
  19. 19.46³ =
  20. 20.21³ =
  21. 21.48³ =
  22. 22.41³ =
  23. 23.77³ =
  24. 24.19³ =
  25. 25.44³ =
  26. 26.14³ =
  27. 27.23³ =
  28. 28.52³ =
  29. 29.94³ =
  30. 30.58³ =
  31. 31.88³ =
  32. 32.75³ =
  33. 33.29³ =
  34. 34.44³ =
  35. 35.26³ =
  36. 36.47³ =
  37. 37.51³ =
  38. 38.41³ =
  39. 39.79³ =
  40. 40.46³ =

Answer key

  1. 5832
  2. 804357
  3. 681472
  4. 287496
  5. 250047
  6. 205379
  7. 970299
  8. 830584
  9. 658503
  10. 456533
  11. 753571
  12. 29791
  13. 778688
  14. 2744
  15. 753571
  16. 357911
  17. 15625
  18. 4096
  19. 97336
  20. 9261
  21. 110592
  22. 68921
  23. 456533
  24. 6859
  25. 85184
  26. 2744
  27. 12167
  28. 140608
  29. 830584
  30. 195112
  31. 681472
  32. 421875
  33. 24389
  34. 85184
  35. 17576
  36. 103823
  37. 132651
  38. 68921
  39. 493039
  40. 97336

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