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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 614 · 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. 1.35³ =
  2. 2.81³ =
  3. 3.87³ =
  4. 4.33³ =
  5. 5.82³ =
  6. 6.76³ =
  7. 7.41³ =
  8. 8.34³ =
  9. 9.25³ =
  10. 10.33³ =
  11. 11.37³ =
  12. 12.98³ =
  13. 13.43³ =
  14. 14.27³ =
  15. 15.18³ =
  16. 16.84³ =
  17. 17.81³ =
  18. 18.53³ =
  19. 19.68³ =
  20. 20.36³ =
  21. 21.13³ =
  22. 22.88³ =
  23. 23.96³ =
  24. 24.74³ =
  25. 25.28³ =
  26. 26.38³ =
  27. 27.76³ =
  28. 28.17³ =
  29. 29.62³ =
  30. 30.53³ =
  31. 31.78³ =
  32. 32.28³ =
  33. 33.61³ =
  34. 34.13³ =
  35. 35.54³ =
  36. 36.77³ =
  37. 37.37³ =
  38. 38.31³ =
  39. 39.75³ =
  40. 40.55³ =

Answer key

  1. 42875
  2. 531441
  3. 658503
  4. 35937
  5. 551368
  6. 438976
  7. 68921
  8. 39304
  9. 15625
  10. 35937
  11. 50653
  12. 941192
  13. 79507
  14. 19683
  15. 5832
  16. 592704
  17. 531441
  18. 148877
  19. 314432
  20. 46656
  21. 2197
  22. 681472
  23. 884736
  24. 405224
  25. 21952
  26. 54872
  27. 438976
  28. 4913
  29. 238328
  30. 148877
  31. 474552
  32. 21952
  33. 226981
  34. 2197
  35. 157464
  36. 456533
  37. 50653
  38. 29791
  39. 421875
  40. 166375

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