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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 51 · 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. 1.84³ =
  2. 2.55³ =
  3. 3.63³ =
  4. 4.13³ =
  5. 5.27³ =
  6. 6.12³ =
  7. 7.14³ =
  8. 8.71³ =
  9. 9.58³ =
  10. 10.34³ =
  11. 11.75³ =
  12. 12.89³ =
  13. 13.81³ =
  14. 14.16³ =
  15. 15.61³ =
  16. 16.41³ =
  17. 17.22³ =
  18. 18.77³ =
  19. 19.59³ =
  20. 20.51³ =
  21. 21.25³ =
  22. 22.26³ =
  23. 23.31³ =
  24. 24.68³ =
  25. 25.36³ =
  26. 26.51³ =
  27. 27.25³ =
  28. 28.91³ =
  29. 29.72³ =
  30. 30.67³ =
  31. 31.67³ =
  32. 32.44³ =
  33. 33.52³ =
  34. 34.22³ =
  35. 35.89³ =
  36. 36.97³ =
  37. 37.54³ =
  38. 38.44³ =
  39. 39.88³ =
  40. 40.79³ =

Answer key

  1. 592704
  2. 166375
  3. 250047
  4. 2197
  5. 19683
  6. 1728
  7. 2744
  8. 357911
  9. 195112
  10. 39304
  11. 421875
  12. 704969
  13. 531441
  14. 4096
  15. 226981
  16. 68921
  17. 10648
  18. 456533
  19. 205379
  20. 132651
  21. 15625
  22. 17576
  23. 29791
  24. 314432
  25. 46656
  26. 132651
  27. 15625
  28. 753571
  29. 373248
  30. 300763
  31. 300763
  32. 85184
  33. 140608
  34. 10648
  35. 704969
  36. 912673
  37. 157464
  38. 85184
  39. 681472
  40. 493039

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