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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 158 · 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. 1.11³ =
  2. 2.89³ =
  3. 3.21³ =
  4. 4.32³ =
  5. 5.86³ =
  6. 6.19³ =
  7. 7.22³ =
  8. 8.51³ =
  9. 9.13³ =
  10. 10.98³ =
  11. 11.51³ =
  12. 12.95³ =
  13. 13.34³ =
  14. 14.15³ =
  15. 15.47³ =
  16. 16.69³ =
  17. 17.82³ =
  18. 18.72³ =
  19. 19.88³ =
  20. 20.71³ =
  21. 21.19³ =
  22. 22.73³ =
  23. 23.45³ =
  24. 24.35³ =
  25. 25.88³ =
  26. 26.96³ =
  27. 27.87³ =
  28. 28.31³ =
  29. 29.97³ =
  30. 30.38³ =
  31. 31.47³ =
  32. 32.41³ =
  33. 33.56³ =
  34. 34.96³ =
  35. 35.81³ =
  36. 36.29³ =
  37. 37.67³ =
  38. 38.72³ =
  39. 39.73³ =
  40. 40.55³ =

Answer key

  1. 1331
  2. 704969
  3. 9261
  4. 32768
  5. 636056
  6. 6859
  7. 10648
  8. 132651
  9. 2197
  10. 941192
  11. 132651
  12. 857375
  13. 39304
  14. 3375
  15. 103823
  16. 328509
  17. 551368
  18. 373248
  19. 681472
  20. 357911
  21. 6859
  22. 389017
  23. 91125
  24. 42875
  25. 681472
  26. 884736
  27. 658503
  28. 29791
  29. 912673
  30. 54872
  31. 103823
  32. 68921
  33. 175616
  34. 884736
  35. 531441
  36. 24389
  37. 300763
  38. 373248
  39. 389017
  40. 166375

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