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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 314 · 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. 1.55³ =
  2. 2.94³ =
  3. 3.13³ =
  4. 4.95³ =
  5. 5.97³ =
  6. 6.18³ =
  7. 7.16³ =
  8. 8.63³ =
  9. 9.48³ =
  10. 10.36³ =
  11. 11.72³ =
  12. 12.84³ =
  13. 13.48³ =
  14. 14.83³ =
  15. 15.62³ =
  16. 16.91³ =
  17. 17.71³ =
  18. 18.13³ =
  19. 19.68³ =
  20. 20.34³ =
  21. 21.77³ =
  22. 22.51³ =
  23. 23.18³ =
  24. 24.85³ =
  25. 25.88³ =
  26. 26.18³ =
  27. 27.28³ =
  28. 28.63³ =
  29. 29.41³ =
  30. 30.61³ =
  31. 31.92³ =
  32. 32.46³ =
  33. 33.45³ =
  34. 34.71³ =
  35. 35.69³ =
  36. 36.19³ =
  37. 37.31³ =
  38. 38.65³ =
  39. 39.16³ =
  40. 40.75³ =

Answer key

  1. 166375
  2. 830584
  3. 2197
  4. 857375
  5. 912673
  6. 5832
  7. 4096
  8. 250047
  9. 110592
  10. 46656
  11. 373248
  12. 592704
  13. 110592
  14. 571787
  15. 238328
  16. 753571
  17. 357911
  18. 2197
  19. 314432
  20. 39304
  21. 456533
  22. 132651
  23. 5832
  24. 614125
  25. 681472
  26. 5832
  27. 21952
  28. 250047
  29. 68921
  30. 226981
  31. 778688
  32. 97336
  33. 91125
  34. 357911
  35. 328509
  36. 6859
  37. 29791
  38. 274625
  39. 4096
  40. 421875

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