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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 507 · 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. 1.69³ =
  2. 2.71³ =
  3. 3.49³ =
  4. 4.35³ =
  5. 5.62³ =
  6. 6.32³ =
  7. 7.98³ =
  8. 8.51³ =
  9. 9.26³ =
  10. 10.62³ =
  11. 11.21³ =
  12. 12.25³ =
  13. 13.47³ =
  14. 14.32³ =
  15. 15.33³ =
  16. 16.17³ =
  17. 17.87³ =
  18. 18.11³ =
  19. 19.73³ =
  20. 20.31³ =
  21. 21.36³ =
  22. 22.24³ =
  23. 23.57³ =
  24. 24.34³ =
  25. 25.76³ =
  26. 26.83³ =
  27. 27.13³ =
  28. 28.87³ =
  29. 29.48³ =
  30. 30.12³ =
  31. 31.55³ =
  32. 32.49³ =
  33. 33.27³ =
  34. 34.53³ =
  35. 35.36³ =
  36. 36.35³ =
  37. 37.16³ =
  38. 38.54³ =
  39. 39.91³ =
  40. 40.33³ =

Answer key

  1. 328509
  2. 357911
  3. 117649
  4. 42875
  5. 238328
  6. 32768
  7. 941192
  8. 132651
  9. 17576
  10. 238328
  11. 9261
  12. 15625
  13. 103823
  14. 32768
  15. 35937
  16. 4913
  17. 658503
  18. 1331
  19. 389017
  20. 29791
  21. 46656
  22. 13824
  23. 185193
  24. 39304
  25. 438976
  26. 571787
  27. 2197
  28. 658503
  29. 110592
  30. 1728
  31. 166375
  32. 117649
  33. 19683
  34. 148877
  35. 46656
  36. 42875
  37. 4096
  38. 157464
  39. 753571
  40. 35937

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