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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 983 · 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. 1.62³ =
  2. 2.47³ =
  3. 3.62³ =
  4. 4.19³ =
  5. 5.68³ =
  6. 6.98³ =
  7. 7.41³ =
  8. 8.11³ =
  9. 9.21³ =
  10. 10.88³ =
  11. 11.95³ =
  12. 12.94³ =
  13. 13.89³ =
  14. 14.31³ =
  15. 15.21³ =
  16. 16.97³ =
  17. 17.61³ =
  18. 18.31³ =
  19. 19.28³ =
  20. 20.37³ =
  21. 21.82³ =
  22. 22.17³ =
  23. 23.44³ =
  24. 24.61³ =
  25. 25.68³ =
  26. 26.29³ =
  27. 27.82³ =
  28. 28.17³ =
  29. 29.41³ =
  30. 30.51³ =
  31. 31.15³ =
  32. 32.94³ =
  33. 33.17³ =
  34. 34.28³ =
  35. 35.41³ =
  36. 36.22³ =
  37. 37.32³ =
  38. 38.55³ =
  39. 39.18³ =
  40. 40.26³ =

Answer key

  1. 238328
  2. 103823
  3. 238328
  4. 6859
  5. 314432
  6. 941192
  7. 68921
  8. 1331
  9. 9261
  10. 681472
  11. 857375
  12. 830584
  13. 704969
  14. 29791
  15. 9261
  16. 912673
  17. 226981
  18. 29791
  19. 21952
  20. 50653
  21. 551368
  22. 4913
  23. 85184
  24. 226981
  25. 314432
  26. 24389
  27. 551368
  28. 4913
  29. 68921
  30. 132651
  31. 3375
  32. 830584
  33. 4913
  34. 21952
  35. 68921
  36. 10648
  37. 32768
  38. 166375
  39. 5832
  40. 17576

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