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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 732 · 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. 2.74³ =
  3. 3.51³ =
  4. 4.54³ =
  5. 5.55³ =
  6. 6.31³ =
  7. 7.33³ =
  8. 8.31³ =
  9. 9.16³ =
  10. 10.89³ =
  11. 11.78³ =
  12. 12.89³ =
  13. 13.36³ =
  14. 14.57³ =
  15. 15.88³ =
  16. 16.62³ =
  17. 17.92³ =
  18. 18.94³ =
  19. 19.41³ =
  20. 20.57³ =
  21. 21.75³ =
  22. 22.98³ =
  23. 23.41³ =
  24. 24.62³ =
  25. 25.24³ =
  26. 26.93³ =
  27. 27.71³ =
  28. 28.32³ =
  29. 29.59³ =
  30. 30.29³ =
  31. 31.54³ =
  32. 32.49³ =
  33. 33.15³ =
  34. 34.11³ =
  35. 35.78³ =
  36. 36.85³ =
  37. 37.82³ =
  38. 38.28³ =
  39. 39.15³ =
  40. 40.74³ =

Answer key

  1. 9261
  2. 405224
  3. 132651
  4. 157464
  5. 166375
  6. 29791
  7. 35937
  8. 29791
  9. 4096
  10. 704969
  11. 474552
  12. 704969
  13. 46656
  14. 185193
  15. 681472
  16. 238328
  17. 778688
  18. 830584
  19. 68921
  20. 185193
  21. 421875
  22. 941192
  23. 68921
  24. 238328
  25. 13824
  26. 804357
  27. 357911
  28. 32768
  29. 205379
  30. 24389
  31. 157464
  32. 117649
  33. 3375
  34. 1331
  35. 474552
  36. 614125
  37. 551368
  38. 21952
  39. 3375
  40. 405224

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