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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 980 · 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. 1.85³ =
  2. 2.29³ =
  3. 3.14³ =
  4. 4.12³ =
  5. 5.18³ =
  6. 6.16³ =
  7. 7.53³ =
  8. 8.39³ =
  9. 9.28³ =
  10. 10.34³ =
  11. 11.53³ =
  12. 12.45³ =
  13. 13.65³ =
  14. 14.99³ =
  15. 15.77³ =
  16. 16.94³ =
  17. 17.31³ =
  18. 18.31³ =
  19. 19.97³ =
  20. 20.15³ =
  21. 21.95³ =
  22. 22.51³ =
  23. 23.68³ =
  24. 24.27³ =
  25. 25.41³ =
  26. 26.59³ =
  27. 27.66³ =
  28. 28.26³ =
  29. 29.52³ =
  30. 30.62³ =
  31. 31.45³ =
  32. 32.21³ =
  33. 33.71³ =
  34. 34.88³ =
  35. 35.11³ =
  36. 36.16³ =
  37. 37.26³ =
  38. 38.84³ =
  39. 39.54³ =
  40. 40.59³ =

Answer key

  1. 614125
  2. 24389
  3. 2744
  4. 1728
  5. 5832
  6. 4096
  7. 148877
  8. 59319
  9. 21952
  10. 39304
  11. 148877
  12. 91125
  13. 274625
  14. 970299
  15. 456533
  16. 830584
  17. 29791
  18. 29791
  19. 912673
  20. 3375
  21. 857375
  22. 132651
  23. 314432
  24. 19683
  25. 68921
  26. 205379
  27. 287496
  28. 17576
  29. 140608
  30. 238328
  31. 91125
  32. 9261
  33. 357911
  34. 681472
  35. 1331
  36. 4096
  37. 17576
  38. 592704
  39. 157464
  40. 205379

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