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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 319 · 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. 1.78³ =
  2. 2.64³ =
  3. 3.35³ =
  4. 4.33³ =
  5. 5.81³ =
  6. 6.16³ =
  7. 7.95³ =
  8. 8.64³ =
  9. 9.18³ =
  10. 10.24³ =
  11. 11.59³ =
  12. 12.21³ =
  13. 13.71³ =
  14. 14.23³ =
  15. 15.69³ =
  16. 16.31³ =
  17. 17.61³ =
  18. 18.78³ =
  19. 19.86³ =
  20. 20.31³ =
  21. 21.71³ =
  22. 22.32³ =
  23. 23.66³ =
  24. 24.57³ =
  25. 25.51³ =
  26. 26.62³ =
  27. 27.64³ =
  28. 28.21³ =
  29. 29.91³ =
  30. 30.15³ =
  31. 31.15³ =
  32. 32.73³ =
  33. 33.15³ =
  34. 34.67³ =
  35. 35.76³ =
  36. 36.36³ =
  37. 37.46³ =
  38. 38.76³ =
  39. 39.72³ =
  40. 40.92³ =

Answer key

  1. 474552
  2. 262144
  3. 42875
  4. 35937
  5. 531441
  6. 4096
  7. 857375
  8. 262144
  9. 5832
  10. 13824
  11. 205379
  12. 9261
  13. 357911
  14. 12167
  15. 328509
  16. 29791
  17. 226981
  18. 474552
  19. 636056
  20. 29791
  21. 357911
  22. 32768
  23. 287496
  24. 185193
  25. 132651
  26. 238328
  27. 262144
  28. 9261
  29. 753571
  30. 3375
  31. 3375
  32. 389017
  33. 3375
  34. 300763
  35. 438976
  36. 46656
  37. 97336
  38. 438976
  39. 373248
  40. 778688

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