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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 9 · 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. 1.64³ =
  2. 2.12³ =
  3. 3.38³ =
  4. 4.31³ =
  5. 5.53³ =
  6. 6.19³ =
  7. 7.69³ =
  8. 8.53³ =
  9. 9.73³ =
  10. 10.16³ =
  11. 11.41³ =
  12. 12.32³ =
  13. 13.18³ =
  14. 14.15³ =
  15. 15.31³ =
  16. 16.93³ =
  17. 17.17³ =
  18. 18.34³ =
  19. 19.34³ =
  20. 20.31³ =
  21. 21.55³ =
  22. 22.84³ =
  23. 23.91³ =
  24. 24.54³ =
  25. 25.82³ =
  26. 26.21³ =
  27. 27.28³ =
  28. 28.91³ =
  29. 29.85³ =
  30. 30.72³ =
  31. 31.62³ =
  32. 32.87³ =
  33. 33.72³ =
  34. 34.78³ =
  35. 35.68³ =
  36. 36.89³ =
  37. 37.19³ =
  38. 38.11³ =
  39. 39.22³ =
  40. 40.22³ =

Answer key

  1. 262144
  2. 1728
  3. 54872
  4. 29791
  5. 148877
  6. 6859
  7. 328509
  8. 148877
  9. 389017
  10. 4096
  11. 68921
  12. 32768
  13. 5832
  14. 3375
  15. 29791
  16. 804357
  17. 4913
  18. 39304
  19. 39304
  20. 29791
  21. 166375
  22. 592704
  23. 753571
  24. 157464
  25. 551368
  26. 9261
  27. 21952
  28. 753571
  29. 614125
  30. 373248
  31. 238328
  32. 658503
  33. 373248
  34. 474552
  35. 314432
  36. 704969
  37. 6859
  38. 1331
  39. 10648
  40. 10648

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