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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 533 · 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. 1.78³ =
  2. 2.74³ =
  3. 3.66³ =
  4. 4.12³ =
  5. 5.24³ =
  6. 6.31³ =
  7. 7.57³ =
  8. 8.21³ =
  9. 9.43³ =
  10. 10.16³ =
  11. 11.71³ =
  12. 12.76³ =
  13. 13.82³ =
  14. 14.62³ =
  15. 15.57³ =
  16. 16.54³ =
  17. 17.85³ =
  18. 18.67³ =
  19. 19.56³ =
  20. 20.13³ =
  21. 21.33³ =
  22. 22.75³ =
  23. 23.78³ =
  24. 24.69³ =
  25. 25.86³ =
  26. 26.37³ =
  27. 27.31³ =
  28. 28.84³ =
  29. 29.96³ =
  30. 30.59³ =
  31. 31.41³ =
  32. 32.29³ =
  33. 33.78³ =
  34. 34.59³ =
  35. 35.29³ =
  36. 36.63³ =
  37. 37.95³ =
  38. 38.18³ =
  39. 39.11³ =
  40. 40.87³ =

Answer key

  1. 474552
  2. 405224
  3. 287496
  4. 1728
  5. 13824
  6. 29791
  7. 185193
  8. 9261
  9. 79507
  10. 4096
  11. 357911
  12. 438976
  13. 551368
  14. 238328
  15. 185193
  16. 157464
  17. 614125
  18. 300763
  19. 175616
  20. 2197
  21. 35937
  22. 421875
  23. 474552
  24. 328509
  25. 636056
  26. 50653
  27. 29791
  28. 592704
  29. 884736
  30. 205379
  31. 68921
  32. 24389
  33. 474552
  34. 205379
  35. 24389
  36. 250047
  37. 857375
  38. 5832
  39. 1331
  40. 658503

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