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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 58 · 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. 1.96³ =
  2. 2.35³ =
  3. 3.93³ =
  4. 4.71³ =
  5. 5.84³ =
  6. 6.33³ =
  7. 7.61³ =
  8. 8.47³ =
  9. 9.98³ =
  10. 10.18³ =
  11. 11.12³ =
  12. 12.65³ =
  13. 13.71³ =
  14. 14.47³ =
  15. 15.28³ =
  16. 16.73³ =
  17. 17.99³ =
  18. 18.73³ =
  19. 19.95³ =
  20. 20.65³ =
  21. 21.45³ =
  22. 22.34³ =
  23. 23.51³ =
  24. 24.33³ =
  25. 25.95³ =
  26. 26.33³ =
  27. 27.79³ =
  28. 28.81³ =
  29. 29.28³ =
  30. 30.57³ =
  31. 31.54³ =
  32. 32.22³ =
  33. 33.41³ =
  34. 34.22³ =
  35. 35.11³ =
  36. 36.55³ =
  37. 37.81³ =
  38. 38.64³ =
  39. 39.31³ =
  40. 40.74³ =

Answer key

  1. 884736
  2. 42875
  3. 804357
  4. 357911
  5. 592704
  6. 35937
  7. 226981
  8. 103823
  9. 941192
  10. 5832
  11. 1728
  12. 274625
  13. 357911
  14. 103823
  15. 21952
  16. 389017
  17. 970299
  18. 389017
  19. 857375
  20. 274625
  21. 91125
  22. 39304
  23. 132651
  24. 35937
  25. 857375
  26. 35937
  27. 493039
  28. 531441
  29. 21952
  30. 185193
  31. 157464
  32. 10648
  33. 68921
  34. 10648
  35. 1331
  36. 166375
  37. 531441
  38. 262144
  39. 29791
  40. 405224

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