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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 934 · 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. 1.74³ =
  2. 2.21³ =
  3. 3.25³ =
  4. 4.35³ =
  5. 5.22³ =
  6. 6.71³ =
  7. 7.68³ =
  8. 8.15³ =
  9. 9.52³ =
  10. 10.18³ =
  11. 11.81³ =
  12. 12.16³ =
  13. 13.45³ =
  14. 14.38³ =
  15. 15.41³ =
  16. 16.91³ =
  17. 17.88³ =
  18. 18.71³ =
  19. 19.75³ =
  20. 20.61³ =
  21. 21.57³ =
  22. 22.86³ =
  23. 23.69³ =
  24. 24.47³ =
  25. 25.93³ =
  26. 26.81³ =
  27. 27.48³ =
  28. 28.29³ =
  29. 29.82³ =
  30. 30.66³ =
  31. 31.21³ =
  32. 32.78³ =
  33. 33.94³ =
  34. 34.43³ =
  35. 35.82³ =
  36. 36.35³ =
  37. 37.14³ =
  38. 38.72³ =
  39. 39.82³ =
  40. 40.91³ =

Answer key

  1. 405224
  2. 9261
  3. 15625
  4. 42875
  5. 10648
  6. 357911
  7. 314432
  8. 3375
  9. 140608
  10. 5832
  11. 531441
  12. 4096
  13. 91125
  14. 54872
  15. 68921
  16. 753571
  17. 681472
  18. 357911
  19. 421875
  20. 226981
  21. 185193
  22. 636056
  23. 328509
  24. 103823
  25. 804357
  26. 531441
  27. 110592
  28. 24389
  29. 551368
  30. 287496
  31. 9261
  32. 474552
  33. 830584
  34. 79507
  35. 551368
  36. 42875
  37. 2744
  38. 373248
  39. 551368
  40. 753571

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