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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 687 · 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. 1.59³ =
  2. 2.67³ =
  3. 3.36³ =
  4. 4.48³ =
  5. 5.83³ =
  6. 6.47³ =
  7. 7.97³ =
  8. 8.12³ =
  9. 9.95³ =
  10. 10.56³ =
  11. 11.26³ =
  12. 12.71³ =
  13. 13.36³ =
  14. 14.78³ =
  15. 15.21³ =
  16. 16.76³ =
  17. 17.48³ =
  18. 18.24³ =
  19. 19.78³ =
  20. 20.21³ =
  21. 21.52³ =
  22. 22.63³ =
  23. 23.74³ =
  24. 24.32³ =
  25. 25.22³ =
  26. 26.57³ =
  27. 27.51³ =
  28. 28.17³ =
  29. 29.75³ =
  30. 30.21³ =
  31. 31.36³ =
  32. 32.51³ =
  33. 33.81³ =
  34. 34.78³ =
  35. 35.55³ =
  36. 36.31³ =
  37. 37.41³ =
  38. 38.16³ =
  39. 39.41³ =
  40. 40.81³ =

Answer key

  1. 205379
  2. 300763
  3. 46656
  4. 110592
  5. 571787
  6. 103823
  7. 912673
  8. 1728
  9. 857375
  10. 175616
  11. 17576
  12. 357911
  13. 46656
  14. 474552
  15. 9261
  16. 438976
  17. 110592
  18. 13824
  19. 474552
  20. 9261
  21. 140608
  22. 250047
  23. 405224
  24. 32768
  25. 10648
  26. 185193
  27. 132651
  28. 4913
  29. 421875
  30. 9261
  31. 46656
  32. 132651
  33. 531441
  34. 474552
  35. 166375
  36. 29791
  37. 68921
  38. 4096
  39. 68921
  40. 531441

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