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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 497 · 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. 1.76³ =
  2. 2.64³ =
  3. 3.96³ =
  4. 4.51³ =
  5. 5.15³ =
  6. 6.42³ =
  7. 7.26³ =
  8. 8.41³ =
  9. 9.28³ =
  10. 10.48³ =
  11. 11.68³ =
  12. 12.71³ =
  13. 13.14³ =
  14. 14.47³ =
  15. 15.45³ =
  16. 16.74³ =
  17. 17.62³ =
  18. 18.68³ =
  19. 19.89³ =
  20. 20.77³ =
  21. 21.56³ =
  22. 22.14³ =
  23. 23.17³ =
  24. 24.33³ =
  25. 25.41³ =
  26. 26.66³ =
  27. 27.91³ =
  28. 28.14³ =
  29. 29.63³ =
  30. 30.24³ =
  31. 31.35³ =
  32. 32.44³ =
  33. 33.74³ =
  34. 34.61³ =
  35. 35.71³ =
  36. 36.84³ =
  37. 37.31³ =
  38. 38.55³ =
  39. 39.31³ =
  40. 40.21³ =

Answer key

  1. 438976
  2. 262144
  3. 884736
  4. 132651
  5. 3375
  6. 74088
  7. 17576
  8. 68921
  9. 21952
  10. 110592
  11. 314432
  12. 357911
  13. 2744
  14. 103823
  15. 91125
  16. 405224
  17. 238328
  18. 314432
  19. 704969
  20. 456533
  21. 175616
  22. 2744
  23. 4913
  24. 35937
  25. 68921
  26. 287496
  27. 753571
  28. 2744
  29. 250047
  30. 13824
  31. 42875
  32. 85184
  33. 405224
  34. 226981
  35. 357911
  36. 592704
  37. 29791
  38. 166375
  39. 29791
  40. 9261

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