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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 815 · 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. 1.91³ =
  2. 2.95³ =
  3. 3.62³ =
  4. 4.87³ =
  5. 5.96³ =
  6. 6.39³ =
  7. 7.13³ =
  8. 8.72³ =
  9. 9.51³ =
  10. 10.88³ =
  11. 11.48³ =
  12. 12.41³ =
  13. 13.21³ =
  14. 14.94³ =
  15. 15.61³ =
  16. 16.26³ =
  17. 17.73³ =
  18. 18.61³ =
  19. 19.41³ =
  20. 20.22³ =
  21. 21.87³ =
  22. 22.63³ =
  23. 23.33³ =
  24. 24.61³ =
  25. 25.46³ =
  26. 26.88³ =
  27. 27.78³ =
  28. 28.11³ =
  29. 29.13³ =
  30. 30.41³ =
  31. 31.43³ =
  32. 32.23³ =
  33. 33.35³ =
  34. 34.21³ =
  35. 35.33³ =
  36. 36.11³ =
  37. 37.92³ =
  38. 38.61³ =
  39. 39.25³ =
  40. 40.16³ =

Answer key

  1. 753571
  2. 857375
  3. 238328
  4. 658503
  5. 884736
  6. 59319
  7. 2197
  8. 373248
  9. 132651
  10. 681472
  11. 110592
  12. 68921
  13. 9261
  14. 830584
  15. 226981
  16. 17576
  17. 389017
  18. 226981
  19. 68921
  20. 10648
  21. 658503
  22. 250047
  23. 35937
  24. 226981
  25. 97336
  26. 681472
  27. 474552
  28. 1331
  29. 2197
  30. 68921
  31. 79507
  32. 12167
  33. 42875
  34. 9261
  35. 35937
  36. 1331
  37. 778688
  38. 226981
  39. 15625
  40. 4096

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