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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 960 · 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. 1.39³ =
  2. 2.95³ =
  3. 3.38³ =
  4. 4.22³ =
  5. 5.52³ =
  6. 6.93³ =
  7. 7.93³ =
  8. 8.64³ =
  9. 9.73³ =
  10. 10.61³ =
  11. 11.33³ =
  12. 12.26³ =
  13. 13.98³ =
  14. 14.19³ =
  15. 15.27³ =
  16. 16.93³ =
  17. 17.71³ =
  18. 18.17³ =
  19. 19.13³ =
  20. 20.94³ =
  21. 21.96³ =
  22. 22.12³ =
  23. 23.65³ =
  24. 24.17³ =
  25. 25.28³ =
  26. 26.62³ =
  27. 27.31³ =
  28. 28.39³ =
  29. 29.32³ =
  30. 30.56³ =
  31. 31.72³ =
  32. 32.61³ =
  33. 33.56³ =
  34. 34.32³ =
  35. 35.91³ =
  36. 36.51³ =
  37. 37.76³ =
  38. 38.67³ =
  39. 39.25³ =
  40. 40.24³ =

Answer key

  1. 59319
  2. 857375
  3. 54872
  4. 10648
  5. 140608
  6. 804357
  7. 804357
  8. 262144
  9. 389017
  10. 226981
  11. 35937
  12. 17576
  13. 941192
  14. 6859
  15. 19683
  16. 804357
  17. 357911
  18. 4913
  19. 2197
  20. 830584
  21. 884736
  22. 1728
  23. 274625
  24. 4913
  25. 21952
  26. 238328
  27. 29791
  28. 59319
  29. 32768
  30. 175616
  31. 373248
  32. 226981
  33. 175616
  34. 32768
  35. 753571
  36. 132651
  37. 438976
  38. 300763
  39. 15625
  40. 13824

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