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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 311 · 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. 1.76³ =
  2. 2.15³ =
  3. 3.56³ =
  4. 4.37³ =
  5. 5.87³ =
  6. 6.89³ =
  7. 7.63³ =
  8. 8.56³ =
  9. 9.68³ =
  10. 10.19³ =
  11. 11.85³ =
  12. 12.25³ =
  13. 13.61³ =
  14. 14.94³ =
  15. 15.84³ =
  16. 16.45³ =
  17. 17.81³ =
  18. 18.61³ =
  19. 19.27³ =
  20. 20.59³ =
  21. 21.61³ =
  22. 22.41³ =
  23. 23.95³ =
  24. 24.72³ =
  25. 25.85³ =
  26. 26.13³ =
  27. 27.92³ =
  28. 28.76³ =
  29. 29.33³ =
  30. 30.73³ =
  31. 31.11³ =
  32. 32.56³ =
  33. 33.61³ =
  34. 34.34³ =
  35. 35.31³ =
  36. 36.87³ =
  37. 37.11³ =
  38. 38.35³ =
  39. 39.96³ =
  40. 40.95³ =

Answer key

  1. 438976
  2. 3375
  3. 175616
  4. 50653
  5. 658503
  6. 704969
  7. 250047
  8. 175616
  9. 314432
  10. 6859
  11. 614125
  12. 15625
  13. 226981
  14. 830584
  15. 592704
  16. 91125
  17. 531441
  18. 226981
  19. 19683
  20. 205379
  21. 226981
  22. 68921
  23. 857375
  24. 373248
  25. 614125
  26. 2197
  27. 778688
  28. 438976
  29. 35937
  30. 389017
  31. 1331
  32. 175616
  33. 226981
  34. 39304
  35. 29791
  36. 658503
  37. 1331
  38. 42875
  39. 884736
  40. 857375

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