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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 769 · 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. 1.75³ =
  2. 2.35³ =
  3. 3.71³ =
  4. 4.83³ =
  5. 5.22³ =
  6. 6.24³ =
  7. 7.11³ =
  8. 8.79³ =
  9. 9.46³ =
  10. 10.45³ =
  11. 11.66³ =
  12. 12.56³ =
  13. 13.71³ =
  14. 14.81³ =
  15. 15.84³ =
  16. 16.67³ =
  17. 17.58³ =
  18. 18.41³ =
  19. 19.23³ =
  20. 20.84³ =
  21. 21.97³ =
  22. 22.69³ =
  23. 23.11³ =
  24. 24.27³ =
  25. 25.66³ =
  26. 26.56³ =
  27. 27.56³ =
  28. 28.17³ =
  29. 29.32³ =
  30. 30.31³ =
  31. 31.12³ =
  32. 32.68³ =
  33. 33.51³ =
  34. 34.17³ =
  35. 35.45³ =
  36. 36.82³ =
  37. 37.17³ =
  38. 38.72³ =
  39. 39.64³ =
  40. 40.62³ =

Answer key

  1. 421875
  2. 42875
  3. 357911
  4. 571787
  5. 10648
  6. 13824
  7. 1331
  8. 493039
  9. 97336
  10. 91125
  11. 287496
  12. 175616
  13. 357911
  14. 531441
  15. 592704
  16. 300763
  17. 195112
  18. 68921
  19. 12167
  20. 592704
  21. 912673
  22. 328509
  23. 1331
  24. 19683
  25. 287496
  26. 175616
  27. 175616
  28. 4913
  29. 32768
  30. 29791
  31. 1728
  32. 314432
  33. 132651
  34. 4913
  35. 91125
  36. 551368
  37. 4913
  38. 373248
  39. 262144
  40. 238328

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