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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 658 · 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. 2.41³ =
  3. 3.86³ =
  4. 4.33³ =
  5. 5.53³ =
  6. 6.71³ =
  7. 7.72³ =
  8. 8.27³ =
  9. 9.61³ =
  10. 10.93³ =
  11. 11.95³ =
  12. 12.26³ =
  13. 13.16³ =
  14. 14.99³ =
  15. 15.99³ =
  16. 16.44³ =
  17. 17.76³ =
  18. 18.13³ =
  19. 19.17³ =
  20. 20.21³ =
  21. 21.83³ =
  22. 22.33³ =
  23. 23.59³ =
  24. 24.23³ =
  25. 25.86³ =
  26. 26.91³ =
  27. 27.72³ =
  28. 28.53³ =
  29. 29.11³ =
  30. 30.57³ =
  31. 31.14³ =
  32. 32.38³ =
  33. 33.62³ =
  34. 34.54³ =
  35. 35.55³ =
  36. 36.27³ =
  37. 37.39³ =
  38. 38.55³ =
  39. 39.21³ =
  40. 40.78³ =

Answer key

  1. 91125
  2. 68921
  3. 636056
  4. 35937
  5. 148877
  6. 357911
  7. 373248
  8. 19683
  9. 226981
  10. 804357
  11. 857375
  12. 17576
  13. 4096
  14. 970299
  15. 970299
  16. 85184
  17. 438976
  18. 2197
  19. 4913
  20. 9261
  21. 571787
  22. 35937
  23. 205379
  24. 12167
  25. 636056
  26. 753571
  27. 373248
  28. 148877
  29. 1331
  30. 185193
  31. 2744
  32. 54872
  33. 238328
  34. 157464
  35. 166375
  36. 19683
  37. 59319
  38. 166375
  39. 9261
  40. 474552

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