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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 940 · 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. 1.66³ =
  2. 2.52³ =
  3. 3.14³ =
  4. 4.39³ =
  5. 5.56³ =
  6. 6.45³ =
  7. 7.81³ =
  8. 8.47³ =
  9. 9.58³ =
  10. 10.91³ =
  11. 11.73³ =
  12. 12.35³ =
  13. 13.91³ =
  14. 14.81³ =
  15. 15.35³ =
  16. 16.81³ =
  17. 17.19³ =
  18. 18.96³ =
  19. 19.13³ =
  20. 20.18³ =
  21. 21.16³ =
  22. 22.73³ =
  23. 23.26³ =
  24. 24.33³ =
  25. 25.32³ =
  26. 26.92³ =
  27. 27.31³ =
  28. 28.51³ =
  29. 29.21³ =
  30. 30.31³ =
  31. 31.45³ =
  32. 32.56³ =
  33. 33.63³ =
  34. 34.41³ =
  35. 35.89³ =
  36. 36.95³ =
  37. 37.61³ =
  38. 38.38³ =
  39. 39.16³ =
  40. 40.38³ =

Answer key

  1. 287496
  2. 140608
  3. 2744
  4. 59319
  5. 175616
  6. 91125
  7. 531441
  8. 103823
  9. 195112
  10. 753571
  11. 389017
  12. 42875
  13. 753571
  14. 531441
  15. 42875
  16. 531441
  17. 6859
  18. 884736
  19. 2197
  20. 5832
  21. 4096
  22. 389017
  23. 17576
  24. 35937
  25. 32768
  26. 778688
  27. 29791
  28. 132651
  29. 9261
  30. 29791
  31. 91125
  32. 175616
  33. 250047
  34. 68921
  35. 704969
  36. 857375
  37. 226981
  38. 54872
  39. 4096
  40. 54872

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