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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 107 · 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. 1.73³ =
  2. 2.19³ =
  3. 3.53³ =
  4. 4.31³ =
  5. 5.67³ =
  6. 6.37³ =
  7. 7.51³ =
  8. 8.69³ =
  9. 9.75³ =
  10. 10.97³ =
  11. 11.58³ =
  12. 12.32³ =
  13. 13.18³ =
  14. 14.95³ =
  15. 15.15³ =
  16. 16.39³ =
  17. 17.11³ =
  18. 18.51³ =
  19. 19.22³ =
  20. 20.45³ =
  21. 21.38³ =
  22. 22.56³ =
  23. 23.58³ =
  24. 24.18³ =
  25. 25.21³ =
  26. 26.14³ =
  27. 27.19³ =
  28. 28.31³ =
  29. 29.34³ =
  30. 30.69³ =
  31. 31.49³ =
  32. 32.28³ =
  33. 33.84³ =
  34. 34.61³ =
  35. 35.23³ =
  36. 36.47³ =
  37. 37.44³ =
  38. 38.31³ =
  39. 39.49³ =
  40. 40.34³ =

Answer key

  1. 389017
  2. 6859
  3. 148877
  4. 29791
  5. 300763
  6. 50653
  7. 132651
  8. 328509
  9. 421875
  10. 912673
  11. 195112
  12. 32768
  13. 5832
  14. 857375
  15. 3375
  16. 59319
  17. 1331
  18. 132651
  19. 10648
  20. 91125
  21. 54872
  22. 175616
  23. 195112
  24. 5832
  25. 9261
  26. 2744
  27. 6859
  28. 29791
  29. 39304
  30. 328509
  31. 117649
  32. 21952
  33. 592704
  34. 226981
  35. 12167
  36. 103823
  37. 85184
  38. 29791
  39. 117649
  40. 39304

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