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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 195 · 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. 1.45³ =
  2. 2.14³ =
  3. 3.97³ =
  4. 4.21³ =
  5. 5.81³ =
  6. 6.35³ =
  7. 7.18³ =
  8. 8.11³ =
  9. 9.75³ =
  10. 10.65³ =
  11. 11.14³ =
  12. 12.77³ =
  13. 13.13³ =
  14. 14.95³ =
  15. 15.73³ =
  16. 16.67³ =
  17. 17.31³ =
  18. 18.13³ =
  19. 19.21³ =
  20. 20.82³ =
  21. 21.37³ =
  22. 22.85³ =
  23. 23.72³ =
  24. 24.21³ =
  25. 25.66³ =
  26. 26.79³ =
  27. 27.69³ =
  28. 28.72³ =
  29. 29.31³ =
  30. 30.71³ =
  31. 31.94³ =
  32. 32.77³ =
  33. 33.26³ =
  34. 34.11³ =
  35. 35.71³ =
  36. 36.41³ =
  37. 37.56³ =
  38. 38.53³ =
  39. 39.17³ =
  40. 40.62³ =

Answer key

  1. 91125
  2. 2744
  3. 912673
  4. 9261
  5. 531441
  6. 42875
  7. 5832
  8. 1331
  9. 421875
  10. 274625
  11. 2744
  12. 456533
  13. 2197
  14. 857375
  15. 389017
  16. 300763
  17. 29791
  18. 2197
  19. 9261
  20. 551368
  21. 50653
  22. 614125
  23. 373248
  24. 9261
  25. 287496
  26. 493039
  27. 328509
  28. 373248
  29. 29791
  30. 357911
  31. 830584
  32. 456533
  33. 17576
  34. 1331
  35. 357911
  36. 68921
  37. 175616
  38. 148877
  39. 4913
  40. 238328

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