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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 976 · 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. 1.35³ =
  2. 2.79³ =
  3. 3.31³ =
  4. 4.49³ =
  5. 5.72³ =
  6. 6.53³ =
  7. 7.61³ =
  8. 8.71³ =
  9. 9.76³ =
  10. 10.67³ =
  11. 11.53³ =
  12. 12.35³ =
  13. 13.96³ =
  14. 14.45³ =
  15. 15.52³ =
  16. 16.34³ =
  17. 17.93³ =
  18. 18.62³ =
  19. 19.18³ =
  20. 20.48³ =
  21. 21.59³ =
  22. 22.51³ =
  23. 23.92³ =
  24. 24.21³ =
  25. 25.97³ =
  26. 26.13³ =
  27. 27.84³ =
  28. 28.81³ =
  29. 29.43³ =
  30. 30.61³ =
  31. 31.44³ =
  32. 32.87³ =
  33. 33.85³ =
  34. 34.98³ =
  35. 35.42³ =
  36. 36.96³ =
  37. 37.16³ =
  38. 38.35³ =
  39. 39.17³ =
  40. 40.17³ =

Answer key

  1. 42875
  2. 493039
  3. 29791
  4. 117649
  5. 373248
  6. 148877
  7. 226981
  8. 357911
  9. 438976
  10. 300763
  11. 148877
  12. 42875
  13. 884736
  14. 91125
  15. 140608
  16. 39304
  17. 804357
  18. 238328
  19. 5832
  20. 110592
  21. 205379
  22. 132651
  23. 778688
  24. 9261
  25. 912673
  26. 2197
  27. 592704
  28. 531441
  29. 79507
  30. 226981
  31. 85184
  32. 658503
  33. 614125
  34. 941192
  35. 74088
  36. 884736
  37. 4096
  38. 42875
  39. 4913
  40. 4913

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