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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 731 · 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. 1.97³ =
  2. 2.87³ =
  3. 3.19³ =
  4. 4.88³ =
  5. 5.91³ =
  6. 6.58³ =
  7. 7.18³ =
  8. 8.26³ =
  9. 9.23³ =
  10. 10.23³ =
  11. 11.49³ =
  12. 12.38³ =
  13. 13.61³ =
  14. 14.55³ =
  15. 15.99³ =
  16. 16.83³ =
  17. 17.23³ =
  18. 18.33³ =
  19. 19.34³ =
  20. 20.71³ =
  21. 21.84³ =
  22. 22.24³ =
  23. 23.47³ =
  24. 24.19³ =
  25. 25.74³ =
  26. 26.21³ =
  27. 27.85³ =
  28. 28.43³ =
  29. 29.36³ =
  30. 30.72³ =
  31. 31.51³ =
  32. 32.16³ =
  33. 33.56³ =
  34. 34.83³ =
  35. 35.35³ =
  36. 36.48³ =
  37. 37.96³ =
  38. 38.77³ =
  39. 39.27³ =
  40. 40.84³ =

Answer key

  1. 912673
  2. 658503
  3. 6859
  4. 681472
  5. 753571
  6. 195112
  7. 5832
  8. 17576
  9. 12167
  10. 12167
  11. 117649
  12. 54872
  13. 226981
  14. 166375
  15. 970299
  16. 571787
  17. 12167
  18. 35937
  19. 39304
  20. 357911
  21. 592704
  22. 13824
  23. 103823
  24. 6859
  25. 405224
  26. 9261
  27. 614125
  28. 79507
  29. 46656
  30. 373248
  31. 132651
  32. 4096
  33. 175616
  34. 571787
  35. 42875
  36. 110592
  37. 884736
  38. 456533
  39. 19683
  40. 592704

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