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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 42 · 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. 1.61³ =
  2. 2.38³ =
  3. 3.85³ =
  4. 4.76³ =
  5. 5.36³ =
  6. 6.85³ =
  7. 7.44³ =
  8. 8.91³ =
  9. 9.32³ =
  10. 10.62³ =
  11. 11.43³ =
  12. 12.64³ =
  13. 13.77³ =
  14. 14.22³ =
  15. 15.27³ =
  16. 16.97³ =
  17. 17.51³ =
  18. 18.34³ =
  19. 19.81³ =
  20. 20.73³ =
  21. 21.85³ =
  22. 22.75³ =
  23. 23.83³ =
  24. 24.34³ =
  25. 25.95³ =
  26. 26.11³ =
  27. 27.17³ =
  28. 28.66³ =
  29. 29.63³ =
  30. 30.92³ =
  31. 31.41³ =
  32. 32.86³ =
  33. 33.84³ =
  34. 34.79³ =
  35. 35.84³ =
  36. 36.72³ =
  37. 37.12³ =
  38. 38.45³ =
  39. 39.96³ =
  40. 40.85³ =

Answer key

  1. 226981
  2. 54872
  3. 614125
  4. 438976
  5. 46656
  6. 614125
  7. 85184
  8. 753571
  9. 32768
  10. 238328
  11. 79507
  12. 262144
  13. 456533
  14. 10648
  15. 19683
  16. 912673
  17. 132651
  18. 39304
  19. 531441
  20. 389017
  21. 614125
  22. 421875
  23. 571787
  24. 39304
  25. 857375
  26. 1331
  27. 4913
  28. 287496
  29. 250047
  30. 778688
  31. 68921
  32. 636056
  33. 592704
  34. 493039
  35. 592704
  36. 373248
  37. 1728
  38. 91125
  39. 884736
  40. 614125

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