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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 422 · 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. 1.19³ =
  2. 2.31³ =
  3. 3.29³ =
  4. 4.91³ =
  5. 5.94³ =
  6. 6.64³ =
  7. 7.44³ =
  8. 8.29³ =
  9. 9.51³ =
  10. 10.78³ =
  11. 11.33³ =
  12. 12.28³ =
  13. 13.62³ =
  14. 14.95³ =
  15. 15.39³ =
  16. 16.85³ =
  17. 17.19³ =
  18. 18.32³ =
  19. 19.52³ =
  20. 20.18³ =
  21. 21.67³ =
  22. 22.66³ =
  23. 23.69³ =
  24. 24.78³ =
  25. 25.54³ =
  26. 26.81³ =
  27. 27.65³ =
  28. 28.11³ =
  29. 29.22³ =
  30. 30.75³ =
  31. 31.29³ =
  32. 32.63³ =
  33. 33.56³ =
  34. 34.85³ =
  35. 35.24³ =
  36. 36.55³ =
  37. 37.82³ =
  38. 38.79³ =
  39. 39.27³ =
  40. 40.82³ =

Answer key

  1. 6859
  2. 29791
  3. 24389
  4. 753571
  5. 830584
  6. 262144
  7. 85184
  8. 24389
  9. 132651
  10. 474552
  11. 35937
  12. 21952
  13. 238328
  14. 857375
  15. 59319
  16. 614125
  17. 6859
  18. 32768
  19. 140608
  20. 5832
  21. 300763
  22. 287496
  23. 328509
  24. 474552
  25. 157464
  26. 531441
  27. 274625
  28. 1331
  29. 10648
  30. 421875
  31. 24389
  32. 250047
  33. 175616
  34. 614125
  35. 13824
  36. 166375
  37. 551368
  38. 493039
  39. 19683
  40. 551368

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