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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 977 · 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. 1.58³ =
  2. 2.78³ =
  3. 3.74³ =
  4. 4.87³ =
  5. 5.35³ =
  6. 6.73³ =
  7. 7.97³ =
  8. 8.73³ =
  9. 9.36³ =
  10. 10.31³ =
  11. 11.41³ =
  12. 12.51³ =
  13. 13.71³ =
  14. 14.94³ =
  15. 15.79³ =
  16. 16.37³ =
  17. 17.25³ =
  18. 18.18³ =
  19. 19.11³ =
  20. 20.31³ =
  21. 21.13³ =
  22. 22.16³ =
  23. 23.67³ =
  24. 24.79³ =
  25. 25.39³ =
  26. 26.94³ =
  27. 27.58³ =
  28. 28.56³ =
  29. 29.51³ =
  30. 30.62³ =
  31. 31.33³ =
  32. 32.21³ =
  33. 33.39³ =
  34. 34.82³ =
  35. 35.26³ =
  36. 36.19³ =
  37. 37.16³ =
  38. 38.63³ =
  39. 39.38³ =
  40. 40.62³ =

Answer key

  1. 195112
  2. 474552
  3. 405224
  4. 658503
  5. 42875
  6. 389017
  7. 912673
  8. 389017
  9. 46656
  10. 29791
  11. 68921
  12. 132651
  13. 357911
  14. 830584
  15. 493039
  16. 50653
  17. 15625
  18. 5832
  19. 1331
  20. 29791
  21. 2197
  22. 4096
  23. 300763
  24. 493039
  25. 59319
  26. 830584
  27. 195112
  28. 175616
  29. 132651
  30. 238328
  31. 35937
  32. 9261
  33. 59319
  34. 551368
  35. 17576
  36. 6859
  37. 4096
  38. 250047
  39. 54872
  40. 238328

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