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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 883 · 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. 1.17³ =
  2. 2.27³ =
  3. 3.88³ =
  4. 4.11³ =
  5. 5.26³ =
  6. 6.91³ =
  7. 7.24³ =
  8. 8.34³ =
  9. 9.46³ =
  10. 10.91³ =
  11. 11.11³ =
  12. 12.23³ =
  13. 13.45³ =
  14. 14.29³ =
  15. 15.53³ =
  16. 16.38³ =
  17. 17.37³ =
  18. 18.41³ =
  19. 19.13³ =
  20. 20.71³ =
  21. 21.12³ =
  22. 22.98³ =
  23. 23.56³ =
  24. 24.98³ =
  25. 25.13³ =
  26. 26.21³ =
  27. 27.22³ =
  28. 28.11³ =
  29. 29.48³ =
  30. 30.15³ =
  31. 31.72³ =
  32. 32.41³ =
  33. 33.85³ =
  34. 34.57³ =
  35. 35.48³ =
  36. 36.21³ =
  37. 37.29³ =
  38. 38.95³ =
  39. 39.88³ =
  40. 40.45³ =

Answer key

  1. 4913
  2. 19683
  3. 681472
  4. 1331
  5. 17576
  6. 753571
  7. 13824
  8. 39304
  9. 97336
  10. 753571
  11. 1331
  12. 12167
  13. 91125
  14. 24389
  15. 148877
  16. 54872
  17. 50653
  18. 68921
  19. 2197
  20. 357911
  21. 1728
  22. 941192
  23. 175616
  24. 941192
  25. 2197
  26. 9261
  27. 10648
  28. 1331
  29. 110592
  30. 3375
  31. 373248
  32. 68921
  33. 614125
  34. 185193
  35. 110592
  36. 9261
  37. 24389
  38. 857375
  39. 681472
  40. 91125

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