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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 303 · 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. 2.64³ =
  3. 3.61³ =
  4. 4.68³ =
  5. 5.41³ =
  6. 6.15³ =
  7. 7.28³ =
  8. 8.89³ =
  9. 9.94³ =
  10. 10.72³ =
  11. 11.27³ =
  12. 12.55³ =
  13. 13.63³ =
  14. 14.15³ =
  15. 15.22³ =
  16. 16.91³ =
  17. 17.56³ =
  18. 18.76³ =
  19. 19.71³ =
  20. 20.75³ =
  21. 21.64³ =
  22. 22.94³ =
  23. 23.66³ =
  24. 24.82³ =
  25. 25.61³ =
  26. 26.36³ =
  27. 27.45³ =
  28. 28.69³ =
  29. 29.31³ =
  30. 30.12³ =
  31. 31.46³ =
  32. 32.61³ =
  33. 33.92³ =
  34. 34.24³ =
  35. 35.98³ =
  36. 36.98³ =
  37. 37.91³ =
  38. 38.41³ =
  39. 39.82³ =
  40. 40.98³ =

Answer key

  1. 314432
  2. 262144
  3. 226981
  4. 314432
  5. 68921
  6. 3375
  7. 21952
  8. 704969
  9. 830584
  10. 373248
  11. 19683
  12. 166375
  13. 250047
  14. 3375
  15. 10648
  16. 753571
  17. 175616
  18. 438976
  19. 357911
  20. 421875
  21. 262144
  22. 830584
  23. 287496
  24. 551368
  25. 226981
  26. 46656
  27. 91125
  28. 328509
  29. 29791
  30. 1728
  31. 97336
  32. 226981
  33. 778688
  34. 13824
  35. 941192
  36. 941192
  37. 753571
  38. 68921
  39. 551368
  40. 941192

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