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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 789 · 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. 2.37³ =
  3. 3.86³ =
  4. 4.24³ =
  5. 5.11³ =
  6. 6.45³ =
  7. 7.35³ =
  8. 8.61³ =
  9. 9.81³ =
  10. 10.56³ =
  11. 11.19³ =
  12. 12.92³ =
  13. 13.71³ =
  14. 14.86³ =
  15. 15.11³ =
  16. 16.27³ =
  17. 17.48³ =
  18. 18.46³ =
  19. 19.22³ =
  20. 20.87³ =
  21. 21.79³ =
  22. 22.65³ =
  23. 23.26³ =
  24. 24.58³ =
  25. 25.62³ =
  26. 26.51³ =
  27. 27.49³ =
  28. 28.95³ =
  29. 29.28³ =
  30. 30.89³ =
  31. 31.68³ =
  32. 32.55³ =
  33. 33.15³ =
  34. 34.24³ =
  35. 35.67³ =
  36. 36.29³ =
  37. 37.55³ =
  38. 38.47³ =
  39. 39.29³ =
  40. 40.77³ =

Answer key

  1. 314432
  2. 50653
  3. 636056
  4. 13824
  5. 1331
  6. 91125
  7. 42875
  8. 226981
  9. 531441
  10. 175616
  11. 6859
  12. 778688
  13. 357911
  14. 636056
  15. 1331
  16. 19683
  17. 110592
  18. 97336
  19. 10648
  20. 658503
  21. 493039
  22. 274625
  23. 17576
  24. 195112
  25. 238328
  26. 132651
  27. 117649
  28. 857375
  29. 21952
  30. 704969
  31. 314432
  32. 166375
  33. 3375
  34. 13824
  35. 300763
  36. 24389
  37. 166375
  38. 103823
  39. 24389
  40. 456533

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