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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 597 · 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. 1.26³ =
  2. 2.73³ =
  3. 3.15³ =
  4. 4.91³ =
  5. 5.84³ =
  6. 6.68³ =
  7. 7.32³ =
  8. 8.29³ =
  9. 9.46³ =
  10. 10.23³ =
  11. 11.51³ =
  12. 12.18³ =
  13. 13.92³ =
  14. 14.63³ =
  15. 15.88³ =
  16. 16.43³ =
  17. 17.26³ =
  18. 18.88³ =
  19. 19.53³ =
  20. 20.99³ =
  21. 21.97³ =
  22. 22.77³ =
  23. 23.21³ =
  24. 24.19³ =
  25. 25.54³ =
  26. 26.28³ =
  27. 27.73³ =
  28. 28.21³ =
  29. 29.78³ =
  30. 30.25³ =
  31. 31.41³ =
  32. 32.75³ =
  33. 33.63³ =
  34. 34.79³ =
  35. 35.99³ =
  36. 36.51³ =
  37. 37.76³ =
  38. 38.27³ =
  39. 39.72³ =
  40. 40.59³ =

Answer key

  1. 17576
  2. 389017
  3. 3375
  4. 753571
  5. 592704
  6. 314432
  7. 32768
  8. 24389
  9. 97336
  10. 12167
  11. 132651
  12. 5832
  13. 778688
  14. 250047
  15. 681472
  16. 79507
  17. 17576
  18. 681472
  19. 148877
  20. 970299
  21. 912673
  22. 456533
  23. 9261
  24. 6859
  25. 157464
  26. 21952
  27. 389017
  28. 9261
  29. 474552
  30. 15625
  31. 68921
  32. 421875
  33. 250047
  34. 493039
  35. 970299
  36. 132651
  37. 438976
  38. 19683
  39. 373248
  40. 205379

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