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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 428 · 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. 1.91³ =
  2. 2.83³ =
  3. 3.78³ =
  4. 4.17³ =
  5. 5.66³ =
  6. 6.94³ =
  7. 7.86³ =
  8. 8.31³ =
  9. 9.53³ =
  10. 10.95³ =
  11. 11.92³ =
  12. 12.38³ =
  13. 13.77³ =
  14. 14.95³ =
  15. 15.71³ =
  16. 16.41³ =
  17. 17.46³ =
  18. 18.99³ =
  19. 19.91³ =
  20. 20.77³ =
  21. 21.67³ =
  22. 22.73³ =
  23. 23.23³ =
  24. 24.67³ =
  25. 25.25³ =
  26. 26.68³ =
  27. 27.64³ =
  28. 28.16³ =
  29. 29.32³ =
  30. 30.53³ =
  31. 31.62³ =
  32. 32.91³ =
  33. 33.82³ =
  34. 34.18³ =
  35. 35.31³ =
  36. 36.36³ =
  37. 37.75³ =
  38. 38.71³ =
  39. 39.46³ =
  40. 40.84³ =

Answer key

  1. 753571
  2. 571787
  3. 474552
  4. 4913
  5. 287496
  6. 830584
  7. 636056
  8. 29791
  9. 148877
  10. 857375
  11. 778688
  12. 54872
  13. 456533
  14. 857375
  15. 357911
  16. 68921
  17. 97336
  18. 970299
  19. 753571
  20. 456533
  21. 300763
  22. 389017
  23. 12167
  24. 300763
  25. 15625
  26. 314432
  27. 262144
  28. 4096
  29. 32768
  30. 148877
  31. 238328
  32. 753571
  33. 551368
  34. 5832
  35. 29791
  36. 46656
  37. 421875
  38. 357911
  39. 97336
  40. 592704

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