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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 874 · 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. 1.45³ =
  2. 2.84³ =
  3. 3.99³ =
  4. 4.27³ =
  5. 5.73³ =
  6. 6.68³ =
  7. 7.19³ =
  8. 8.36³ =
  9. 9.55³ =
  10. 10.55³ =
  11. 11.46³ =
  12. 12.78³ =
  13. 13.72³ =
  14. 14.71³ =
  15. 15.18³ =
  16. 16.83³ =
  17. 17.61³ =
  18. 18.23³ =
  19. 19.26³ =
  20. 20.72³ =
  21. 21.13³ =
  22. 22.63³ =
  23. 23.92³ =
  24. 24.76³ =
  25. 25.67³ =
  26. 26.43³ =
  27. 27.55³ =
  28. 28.91³ =
  29. 29.97³ =
  30. 30.58³ =
  31. 31.21³ =
  32. 32.47³ =
  33. 33.16³ =
  34. 34.35³ =
  35. 35.21³ =
  36. 36.64³ =
  37. 37.41³ =
  38. 38.37³ =
  39. 39.46³ =
  40. 40.67³ =

Answer key

  1. 91125
  2. 592704
  3. 970299
  4. 19683
  5. 389017
  6. 314432
  7. 6859
  8. 46656
  9. 166375
  10. 166375
  11. 97336
  12. 474552
  13. 373248
  14. 357911
  15. 5832
  16. 571787
  17. 226981
  18. 12167
  19. 17576
  20. 373248
  21. 2197
  22. 250047
  23. 778688
  24. 438976
  25. 300763
  26. 79507
  27. 166375
  28. 753571
  29. 912673
  30. 195112
  31. 9261
  32. 103823
  33. 4096
  34. 42875
  35. 9261
  36. 262144
  37. 68921
  38. 50653
  39. 97336
  40. 300763

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