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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 496 · 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. 1.26³ =
  2. 2.91³ =
  3. 3.76³ =
  4. 4.55³ =
  5. 5.72³ =
  6. 6.45³ =
  7. 7.59³ =
  8. 8.21³ =
  9. 9.13³ =
  10. 10.44³ =
  11. 11.54³ =
  12. 12.13³ =
  13. 13.52³ =
  14. 14.95³ =
  15. 15.27³ =
  16. 16.19³ =
  17. 17.81³ =
  18. 18.74³ =
  19. 19.31³ =
  20. 20.24³ =
  21. 21.89³ =
  22. 22.43³ =
  23. 23.94³ =
  24. 24.41³ =
  25. 25.56³ =
  26. 26.34³ =
  27. 27.97³ =
  28. 28.87³ =
  29. 29.32³ =
  30. 30.51³ =
  31. 31.35³ =
  32. 32.11³ =
  33. 33.91³ =
  34. 34.33³ =
  35. 35.92³ =
  36. 36.95³ =
  37. 37.21³ =
  38. 38.46³ =
  39. 39.51³ =
  40. 40.48³ =

Answer key

  1. 17576
  2. 753571
  3. 438976
  4. 166375
  5. 373248
  6. 91125
  7. 205379
  8. 9261
  9. 2197
  10. 85184
  11. 157464
  12. 2197
  13. 140608
  14. 857375
  15. 19683
  16. 6859
  17. 531441
  18. 405224
  19. 29791
  20. 13824
  21. 704969
  22. 79507
  23. 830584
  24. 68921
  25. 175616
  26. 39304
  27. 912673
  28. 658503
  29. 32768
  30. 132651
  31. 42875
  32. 1331
  33. 753571
  34. 35937
  35. 778688
  36. 857375
  37. 9261
  38. 97336
  39. 132651
  40. 110592

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