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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 674 · 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. 1.97³ =
  2. 2.66³ =
  3. 3.44³ =
  4. 4.32³ =
  5. 5.31³ =
  6. 6.48³ =
  7. 7.73³ =
  8. 8.94³ =
  9. 9.51³ =
  10. 10.59³ =
  11. 11.81³ =
  12. 12.71³ =
  13. 13.14³ =
  14. 14.35³ =
  15. 15.21³ =
  16. 16.98³ =
  17. 17.36³ =
  18. 18.12³ =
  19. 19.39³ =
  20. 20.65³ =
  21. 21.19³ =
  22. 22.54³ =
  23. 23.36³ =
  24. 24.41³ =
  25. 25.74³ =
  26. 26.33³ =
  27. 27.54³ =
  28. 28.16³ =
  29. 29.23³ =
  30. 30.91³ =
  31. 31.71³ =
  32. 32.42³ =
  33. 33.44³ =
  34. 34.75³ =
  35. 35.69³ =
  36. 36.62³ =
  37. 37.29³ =
  38. 38.12³ =
  39. 39.22³ =
  40. 40.36³ =

Answer key

  1. 912673
  2. 287496
  3. 85184
  4. 32768
  5. 29791
  6. 110592
  7. 389017
  8. 830584
  9. 132651
  10. 205379
  11. 531441
  12. 357911
  13. 2744
  14. 42875
  15. 9261
  16. 941192
  17. 46656
  18. 1728
  19. 59319
  20. 274625
  21. 6859
  22. 157464
  23. 46656
  24. 68921
  25. 405224
  26. 35937
  27. 157464
  28. 4096
  29. 12167
  30. 753571
  31. 357911
  32. 74088
  33. 85184
  34. 421875
  35. 328509
  36. 238328
  37. 24389
  38. 1728
  39. 10648
  40. 46656

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