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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 353 · 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. 1.57³ =
  2. 2.27³ =
  3. 3.34³ =
  4. 4.83³ =
  5. 5.82³ =
  6. 6.67³ =
  7. 7.96³ =
  8. 8.33³ =
  9. 9.57³ =
  10. 10.69³ =
  11. 11.82³ =
  12. 12.54³ =
  13. 13.91³ =
  14. 14.63³ =
  15. 15.84³ =
  16. 16.19³ =
  17. 17.91³ =
  18. 18.59³ =
  19. 19.47³ =
  20. 20.67³ =
  21. 21.64³ =
  22. 22.69³ =
  23. 23.81³ =
  24. 24.48³ =
  25. 25.66³ =
  26. 26.42³ =
  27. 27.44³ =
  28. 28.41³ =
  29. 29.18³ =
  30. 30.81³ =
  31. 31.75³ =
  32. 32.45³ =
  33. 33.26³ =
  34. 34.48³ =
  35. 35.88³ =
  36. 36.12³ =
  37. 37.88³ =
  38. 38.72³ =
  39. 39.71³ =
  40. 40.76³ =

Answer key

  1. 185193
  2. 19683
  3. 39304
  4. 571787
  5. 551368
  6. 300763
  7. 884736
  8. 35937
  9. 185193
  10. 328509
  11. 551368
  12. 157464
  13. 753571
  14. 250047
  15. 592704
  16. 6859
  17. 753571
  18. 205379
  19. 103823
  20. 300763
  21. 262144
  22. 328509
  23. 531441
  24. 110592
  25. 287496
  26. 74088
  27. 85184
  28. 68921
  29. 5832
  30. 531441
  31. 421875
  32. 91125
  33. 17576
  34. 110592
  35. 681472
  36. 1728
  37. 681472
  38. 373248
  39. 357911
  40. 438976

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