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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 171 · 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. 1.56³ =
  2. 2.33³ =
  3. 3.74³ =
  4. 4.13³ =
  5. 5.51³ =
  6. 6.21³ =
  7. 7.98³ =
  8. 8.21³ =
  9. 9.74³ =
  10. 10.29³ =
  11. 11.12³ =
  12. 12.79³ =
  13. 13.92³ =
  14. 14.26³ =
  15. 15.94³ =
  16. 16.15³ =
  17. 17.49³ =
  18. 18.37³ =
  19. 19.24³ =
  20. 20.42³ =
  21. 21.72³ =
  22. 22.37³ =
  23. 23.78³ =
  24. 24.81³ =
  25. 25.81³ =
  26. 26.23³ =
  27. 27.26³ =
  28. 28.51³ =
  29. 29.96³ =
  30. 30.12³ =
  31. 31.68³ =
  32. 32.22³ =
  33. 33.71³ =
  34. 34.81³ =
  35. 35.57³ =
  36. 36.23³ =
  37. 37.47³ =
  38. 38.37³ =
  39. 39.51³ =
  40. 40.55³ =

Answer key

  1. 175616
  2. 35937
  3. 405224
  4. 2197
  5. 132651
  6. 9261
  7. 941192
  8. 9261
  9. 405224
  10. 24389
  11. 1728
  12. 493039
  13. 778688
  14. 17576
  15. 830584
  16. 3375
  17. 117649
  18. 50653
  19. 13824
  20. 74088
  21. 373248
  22. 50653
  23. 474552
  24. 531441
  25. 531441
  26. 12167
  27. 17576
  28. 132651
  29. 884736
  30. 1728
  31. 314432
  32. 10648
  33. 357911
  34. 531441
  35. 185193
  36. 12167
  37. 103823
  38. 50653
  39. 132651
  40. 166375

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