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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 939 · 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. 1.73³ =
  2. 2.65³ =
  3. 3.25³ =
  4. 4.89³ =
  5. 5.19³ =
  6. 6.59³ =
  7. 7.26³ =
  8. 8.51³ =
  9. 9.18³ =
  10. 10.78³ =
  11. 11.75³ =
  12. 12.49³ =
  13. 13.31³ =
  14. 14.43³ =
  15. 15.12³ =
  16. 16.52³ =
  17. 17.86³ =
  18. 18.58³ =
  19. 19.82³ =
  20. 20.12³ =
  21. 21.88³ =
  22. 22.54³ =
  23. 23.21³ =
  24. 24.15³ =
  25. 25.72³ =
  26. 26.71³ =
  27. 27.31³ =
  28. 28.68³ =
  29. 29.35³ =
  30. 30.25³ =
  31. 31.54³ =
  32. 32.11³ =
  33. 33.71³ =
  34. 34.32³ =
  35. 35.51³ =
  36. 36.85³ =
  37. 37.21³ =
  38. 38.49³ =
  39. 39.83³ =
  40. 40.57³ =

Answer key

  1. 389017
  2. 274625
  3. 15625
  4. 704969
  5. 6859
  6. 205379
  7. 17576
  8. 132651
  9. 5832
  10. 474552
  11. 421875
  12. 117649
  13. 29791
  14. 79507
  15. 1728
  16. 140608
  17. 636056
  18. 195112
  19. 551368
  20. 1728
  21. 681472
  22. 157464
  23. 9261
  24. 3375
  25. 373248
  26. 357911
  27. 29791
  28. 314432
  29. 42875
  30. 15625
  31. 157464
  32. 1331
  33. 357911
  34. 32768
  35. 132651
  36. 614125
  37. 9261
  38. 117649
  39. 571787
  40. 185193

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