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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 970 · 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. 1.41³ =
  2. 2.39³ =
  3. 3.83³ =
  4. 4.45³ =
  5. 5.45³ =
  6. 6.12³ =
  7. 7.44³ =
  8. 8.47³ =
  9. 9.42³ =
  10. 10.62³ =
  11. 11.83³ =
  12. 12.28³ =
  13. 13.76³ =
  14. 14.76³ =
  15. 15.12³ =
  16. 16.98³ =
  17. 17.91³ =
  18. 18.13³ =
  19. 19.22³ =
  20. 20.33³ =
  21. 21.88³ =
  22. 22.99³ =
  23. 23.98³ =
  24. 24.36³ =
  25. 25.86³ =
  26. 26.14³ =
  27. 27.76³ =
  28. 28.31³ =
  29. 29.33³ =
  30. 30.41³ =
  31. 31.59³ =
  32. 32.24³ =
  33. 33.26³ =
  34. 34.31³ =
  35. 35.61³ =
  36. 36.33³ =
  37. 37.61³ =
  38. 38.23³ =
  39. 39.34³ =
  40. 40.74³ =

Answer key

  1. 68921
  2. 59319
  3. 571787
  4. 91125
  5. 91125
  6. 1728
  7. 85184
  8. 103823
  9. 74088
  10. 238328
  11. 571787
  12. 21952
  13. 438976
  14. 438976
  15. 1728
  16. 941192
  17. 753571
  18. 2197
  19. 10648
  20. 35937
  21. 681472
  22. 970299
  23. 941192
  24. 46656
  25. 636056
  26. 2744
  27. 438976
  28. 29791
  29. 35937
  30. 68921
  31. 205379
  32. 13824
  33. 17576
  34. 29791
  35. 226981
  36. 35937
  37. 226981
  38. 12167
  39. 39304
  40. 405224

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