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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 572 · 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. 1.94³ =
  2. 2.34³ =
  3. 3.25³ =
  4. 4.74³ =
  5. 5.85³ =
  6. 6.26³ =
  7. 7.66³ =
  8. 8.76³ =
  9. 9.83³ =
  10. 10.93³ =
  11. 11.67³ =
  12. 12.22³ =
  13. 13.88³ =
  14. 14.74³ =
  15. 15.78³ =
  16. 16.23³ =
  17. 17.95³ =
  18. 18.32³ =
  19. 19.24³ =
  20. 20.21³ =
  21. 21.61³ =
  22. 22.52³ =
  23. 23.24³ =
  24. 24.33³ =
  25. 25.15³ =
  26. 26.16³ =
  27. 27.54³ =
  28. 28.25³ =
  29. 29.24³ =
  30. 30.94³ =
  31. 31.84³ =
  32. 32.74³ =
  33. 33.98³ =
  34. 34.32³ =
  35. 35.31³ =
  36. 36.97³ =
  37. 37.37³ =
  38. 38.59³ =
  39. 39.76³ =
  40. 40.31³ =

Answer key

  1. 830584
  2. 39304
  3. 15625
  4. 405224
  5. 614125
  6. 17576
  7. 287496
  8. 438976
  9. 571787
  10. 804357
  11. 300763
  12. 10648
  13. 681472
  14. 405224
  15. 474552
  16. 12167
  17. 857375
  18. 32768
  19. 13824
  20. 9261
  21. 226981
  22. 140608
  23. 13824
  24. 35937
  25. 3375
  26. 4096
  27. 157464
  28. 15625
  29. 13824
  30. 830584
  31. 592704
  32. 405224
  33. 941192
  34. 32768
  35. 29791
  36. 912673
  37. 50653
  38. 205379
  39. 438976
  40. 29791

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