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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 149 · 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. 1.25³ =
  2. 2.42³ =
  3. 3.66³ =
  4. 4.25³ =
  5. 5.12³ =
  6. 6.56³ =
  7. 7.23³ =
  8. 8.43³ =
  9. 9.57³ =
  10. 10.56³ =
  11. 11.72³ =
  12. 12.64³ =
  13. 13.28³ =
  14. 14.17³ =
  15. 15.24³ =
  16. 16.95³ =
  17. 17.28³ =
  18. 18.43³ =
  19. 19.23³ =
  20. 20.39³ =
  21. 21.53³ =
  22. 22.27³ =
  23. 23.24³ =
  24. 24.99³ =
  25. 25.31³ =
  26. 26.84³ =
  27. 27.82³ =
  28. 28.81³ =
  29. 29.85³ =
  30. 30.29³ =
  31. 31.23³ =
  32. 32.44³ =
  33. 33.14³ =
  34. 34.32³ =
  35. 35.26³ =
  36. 36.35³ =
  37. 37.87³ =
  38. 38.36³ =
  39. 39.87³ =
  40. 40.28³ =

Answer key

  1. 15625
  2. 74088
  3. 287496
  4. 15625
  5. 1728
  6. 175616
  7. 12167
  8. 79507
  9. 185193
  10. 175616
  11. 373248
  12. 262144
  13. 21952
  14. 4913
  15. 13824
  16. 857375
  17. 21952
  18. 79507
  19. 12167
  20. 59319
  21. 148877
  22. 19683
  23. 13824
  24. 970299
  25. 29791
  26. 592704
  27. 551368
  28. 531441
  29. 614125
  30. 24389
  31. 12167
  32. 85184
  33. 2744
  34. 32768
  35. 17576
  36. 42875
  37. 658503
  38. 46656
  39. 658503
  40. 21952

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