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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 562 · 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. 1.83³ =
  2. 2.64³ =
  3. 3.99³ =
  4. 4.25³ =
  5. 5.33³ =
  6. 6.94³ =
  7. 7.34³ =
  8. 8.83³ =
  9. 9.85³ =
  10. 10.64³ =
  11. 11.27³ =
  12. 12.59³ =
  13. 13.84³ =
  14. 14.16³ =
  15. 15.13³ =
  16. 16.58³ =
  17. 17.43³ =
  18. 18.13³ =
  19. 19.64³ =
  20. 20.69³ =
  21. 21.41³ =
  22. 22.76³ =
  23. 23.16³ =
  24. 24.71³ =
  25. 25.27³ =
  26. 26.88³ =
  27. 27.46³ =
  28. 28.41³ =
  29. 29.35³ =
  30. 30.31³ =
  31. 31.49³ =
  32. 32.31³ =
  33. 33.56³ =
  34. 34.17³ =
  35. 35.35³ =
  36. 36.36³ =
  37. 37.88³ =
  38. 38.93³ =
  39. 39.28³ =
  40. 40.98³ =

Answer key

  1. 571787
  2. 262144
  3. 970299
  4. 15625
  5. 35937
  6. 830584
  7. 39304
  8. 571787
  9. 614125
  10. 262144
  11. 19683
  12. 205379
  13. 592704
  14. 4096
  15. 2197
  16. 195112
  17. 79507
  18. 2197
  19. 262144
  20. 328509
  21. 68921
  22. 438976
  23. 4096
  24. 357911
  25. 19683
  26. 681472
  27. 97336
  28. 68921
  29. 42875
  30. 29791
  31. 117649
  32. 29791
  33. 175616
  34. 4913
  35. 42875
  36. 46656
  37. 681472
  38. 804357
  39. 21952
  40. 941192

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