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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 554 · 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. 1.29³ =
  2. 2.11³ =
  3. 3.36³ =
  4. 4.43³ =
  5. 5.89³ =
  6. 6.31³ =
  7. 7.91³ =
  8. 8.35³ =
  9. 9.42³ =
  10. 10.87³ =
  11. 11.44³ =
  12. 12.78³ =
  13. 13.59³ =
  14. 14.73³ =
  15. 15.63³ =
  16. 16.25³ =
  17. 17.34³ =
  18. 18.71³ =
  19. 19.77³ =
  20. 20.28³ =
  21. 21.41³ =
  22. 22.35³ =
  23. 23.36³ =
  24. 24.19³ =
  25. 25.64³ =
  26. 26.19³ =
  27. 27.18³ =
  28. 28.72³ =
  29. 29.71³ =
  30. 30.95³ =
  31. 31.53³ =
  32. 32.18³ =
  33. 33.98³ =
  34. 34.51³ =
  35. 35.79³ =
  36. 36.13³ =
  37. 37.51³ =
  38. 38.11³ =
  39. 39.44³ =
  40. 40.14³ =

Answer key

  1. 24389
  2. 1331
  3. 46656
  4. 79507
  5. 704969
  6. 29791
  7. 753571
  8. 42875
  9. 74088
  10. 658503
  11. 85184
  12. 474552
  13. 205379
  14. 389017
  15. 250047
  16. 15625
  17. 39304
  18. 357911
  19. 456533
  20. 21952
  21. 68921
  22. 42875
  23. 46656
  24. 6859
  25. 262144
  26. 6859
  27. 5832
  28. 373248
  29. 357911
  30. 857375
  31. 148877
  32. 5832
  33. 941192
  34. 132651
  35. 493039
  36. 2197
  37. 132651
  38. 1331
  39. 85184
  40. 2744

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