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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 374 · 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. 1.72³ =
  2. 2.14³ =
  3. 3.47³ =
  4. 4.54³ =
  5. 5.39³ =
  6. 6.37³ =
  7. 7.41³ =
  8. 8.28³ =
  9. 9.75³ =
  10. 10.48³ =
  11. 11.97³ =
  12. 12.91³ =
  13. 13.51³ =
  14. 14.26³ =
  15. 15.19³ =
  16. 16.37³ =
  17. 17.85³ =
  18. 18.89³ =
  19. 19.85³ =
  20. 20.32³ =
  21. 21.51³ =
  22. 22.33³ =
  23. 23.84³ =
  24. 24.64³ =
  25. 25.21³ =
  26. 26.59³ =
  27. 27.11³ =
  28. 28.15³ =
  29. 29.92³ =
  30. 30.74³ =
  31. 31.81³ =
  32. 32.91³ =
  33. 33.71³ =
  34. 34.61³ =
  35. 35.71³ =
  36. 36.96³ =
  37. 37.72³ =
  38. 38.78³ =
  39. 39.39³ =
  40. 40.41³ =

Answer key

  1. 373248
  2. 2744
  3. 103823
  4. 157464
  5. 59319
  6. 50653
  7. 68921
  8. 21952
  9. 421875
  10. 110592
  11. 912673
  12. 753571
  13. 132651
  14. 17576
  15. 6859
  16. 50653
  17. 614125
  18. 704969
  19. 614125
  20. 32768
  21. 132651
  22. 35937
  23. 592704
  24. 262144
  25. 9261
  26. 205379
  27. 1331
  28. 3375
  29. 778688
  30. 405224
  31. 531441
  32. 753571
  33. 357911
  34. 226981
  35. 357911
  36. 884736
  37. 373248
  38. 474552
  39. 59319
  40. 68921

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