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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 406 · 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. 1.16³ =
  2. 2.17³ =
  3. 3.67³ =
  4. 4.17³ =
  5. 5.19³ =
  6. 6.72³ =
  7. 7.51³ =
  8. 8.72³ =
  9. 9.21³ =
  10. 10.79³ =
  11. 11.71³ =
  12. 12.54³ =
  13. 13.94³ =
  14. 14.28³ =
  15. 15.23³ =
  16. 16.82³ =
  17. 17.14³ =
  18. 18.72³ =
  19. 19.27³ =
  20. 20.88³ =
  21. 21.27³ =
  22. 22.44³ =
  23. 23.51³ =
  24. 24.17³ =
  25. 25.59³ =
  26. 26.75³ =
  27. 27.42³ =
  28. 28.72³ =
  29. 29.92³ =
  30. 30.33³ =
  31. 31.17³ =
  32. 32.49³ =
  33. 33.66³ =
  34. 34.99³ =
  35. 35.41³ =
  36. 36.92³ =
  37. 37.66³ =
  38. 38.28³ =
  39. 39.35³ =
  40. 40.53³ =

Answer key

  1. 4096
  2. 4913
  3. 300763
  4. 4913
  5. 6859
  6. 373248
  7. 132651
  8. 373248
  9. 9261
  10. 493039
  11. 357911
  12. 157464
  13. 830584
  14. 21952
  15. 12167
  16. 551368
  17. 2744
  18. 373248
  19. 19683
  20. 681472
  21. 19683
  22. 85184
  23. 132651
  24. 4913
  25. 205379
  26. 421875
  27. 74088
  28. 373248
  29. 778688
  30. 35937
  31. 4913
  32. 117649
  33. 287496
  34. 970299
  35. 68921
  36. 778688
  37. 287496
  38. 21952
  39. 42875
  40. 148877

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