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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 817 · 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. 1.68³ =
  2. 2.21³ =
  3. 3.31³ =
  4. 4.17³ =
  5. 5.57³ =
  6. 6.98³ =
  7. 7.44³ =
  8. 8.15³ =
  9. 9.24³ =
  10. 10.81³ =
  11. 11.71³ =
  12. 12.71³ =
  13. 13.59³ =
  14. 14.27³ =
  15. 15.38³ =
  16. 16.59³ =
  17. 17.54³ =
  18. 18.27³ =
  19. 19.81³ =
  20. 20.11³ =
  21. 21.11³ =
  22. 22.95³ =
  23. 23.69³ =
  24. 24.97³ =
  25. 25.19³ =
  26. 26.92³ =
  27. 27.98³ =
  28. 28.18³ =
  29. 29.27³ =
  30. 30.71³ =
  31. 31.56³ =
  32. 32.47³ =
  33. 33.63³ =
  34. 34.12³ =
  35. 35.45³ =
  36. 36.48³ =
  37. 37.21³ =
  38. 38.26³ =
  39. 39.78³ =
  40. 40.34³ =

Answer key

  1. 314432
  2. 9261
  3. 29791
  4. 4913
  5. 185193
  6. 941192
  7. 85184
  8. 3375
  9. 13824
  10. 531441
  11. 357911
  12. 357911
  13. 205379
  14. 19683
  15. 54872
  16. 205379
  17. 157464
  18. 19683
  19. 531441
  20. 1331
  21. 1331
  22. 857375
  23. 328509
  24. 912673
  25. 6859
  26. 778688
  27. 941192
  28. 5832
  29. 19683
  30. 357911
  31. 175616
  32. 103823
  33. 250047
  34. 1728
  35. 91125
  36. 110592
  37. 9261
  38. 17576
  39. 474552
  40. 39304

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