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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 719 · 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. 1.21³ =
  2. 2.88³ =
  3. 3.26³ =
  4. 4.54³ =
  5. 5.71³ =
  6. 6.97³ =
  7. 7.52³ =
  8. 8.87³ =
  9. 9.97³ =
  10. 10.85³ =
  11. 11.62³ =
  12. 12.89³ =
  13. 13.74³ =
  14. 14.19³ =
  15. 15.89³ =
  16. 16.22³ =
  17. 17.71³ =
  18. 18.77³ =
  19. 19.16³ =
  20. 20.17³ =
  21. 21.53³ =
  22. 22.23³ =
  23. 23.85³ =
  24. 24.34³ =
  25. 25.12³ =
  26. 26.55³ =
  27. 27.56³ =
  28. 28.61³ =
  29. 29.74³ =
  30. 30.32³ =
  31. 31.52³ =
  32. 32.13³ =
  33. 33.41³ =
  34. 34.48³ =
  35. 35.46³ =
  36. 36.52³ =
  37. 37.53³ =
  38. 38.93³ =
  39. 39.98³ =
  40. 40.97³ =

Answer key

  1. 9261
  2. 681472
  3. 17576
  4. 157464
  5. 357911
  6. 912673
  7. 140608
  8. 658503
  9. 912673
  10. 614125
  11. 238328
  12. 704969
  13. 405224
  14. 6859
  15. 704969
  16. 10648
  17. 357911
  18. 456533
  19. 4096
  20. 4913
  21. 148877
  22. 12167
  23. 614125
  24. 39304
  25. 1728
  26. 166375
  27. 175616
  28. 226981
  29. 405224
  30. 32768
  31. 140608
  32. 2197
  33. 68921
  34. 110592
  35. 97336
  36. 140608
  37. 148877
  38. 804357
  39. 941192
  40. 912673

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