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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 777 · 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. 1.74³ =
  2. 2.35³ =
  3. 3.98³ =
  4. 4.49³ =
  5. 5.87³ =
  6. 6.71³ =
  7. 7.88³ =
  8. 8.32³ =
  9. 9.28³ =
  10. 10.92³ =
  11. 11.71³ =
  12. 12.32³ =
  13. 13.62³ =
  14. 14.33³ =
  15. 15.65³ =
  16. 16.35³ =
  17. 17.62³ =
  18. 18.11³ =
  19. 19.28³ =
  20. 20.65³ =
  21. 21.57³ =
  22. 22.47³ =
  23. 23.55³ =
  24. 24.85³ =
  25. 25.93³ =
  26. 26.85³ =
  27. 27.29³ =
  28. 28.31³ =
  29. 29.68³ =
  30. 30.54³ =
  31. 31.53³ =
  32. 32.99³ =
  33. 33.89³ =
  34. 34.79³ =
  35. 35.73³ =
  36. 36.38³ =
  37. 37.64³ =
  38. 38.18³ =
  39. 39.26³ =
  40. 40.44³ =

Answer key

  1. 405224
  2. 42875
  3. 941192
  4. 117649
  5. 658503
  6. 357911
  7. 681472
  8. 32768
  9. 21952
  10. 778688
  11. 357911
  12. 32768
  13. 238328
  14. 35937
  15. 274625
  16. 42875
  17. 238328
  18. 1331
  19. 21952
  20. 274625
  21. 185193
  22. 103823
  23. 166375
  24. 614125
  25. 804357
  26. 614125
  27. 24389
  28. 29791
  29. 314432
  30. 157464
  31. 148877
  32. 970299
  33. 704969
  34. 493039
  35. 389017
  36. 54872
  37. 262144
  38. 5832
  39. 17576
  40. 85184

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