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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 551 · 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. 1.34³ =
  2. 2.94³ =
  3. 3.26³ =
  4. 4.68³ =
  5. 5.85³ =
  6. 6.91³ =
  7. 7.22³ =
  8. 8.24³ =
  9. 9.22³ =
  10. 10.49³ =
  11. 11.23³ =
  12. 12.36³ =
  13. 13.44³ =
  14. 14.41³ =
  15. 15.72³ =
  16. 16.21³ =
  17. 17.64³ =
  18. 18.44³ =
  19. 19.71³ =
  20. 20.15³ =
  21. 21.39³ =
  22. 22.11³ =
  23. 23.79³ =
  24. 24.65³ =
  25. 25.87³ =
  26. 26.98³ =
  27. 27.61³ =
  28. 28.12³ =
  29. 29.74³ =
  30. 30.86³ =
  31. 31.86³ =
  32. 32.88³ =
  33. 33.66³ =
  34. 34.49³ =
  35. 35.81³ =
  36. 36.81³ =
  37. 37.42³ =
  38. 38.17³ =
  39. 39.63³ =
  40. 40.18³ =

Answer key

  1. 39304
  2. 830584
  3. 17576
  4. 314432
  5. 614125
  6. 753571
  7. 10648
  8. 13824
  9. 10648
  10. 117649
  11. 12167
  12. 46656
  13. 85184
  14. 68921
  15. 373248
  16. 9261
  17. 262144
  18. 85184
  19. 357911
  20. 3375
  21. 59319
  22. 1331
  23. 493039
  24. 274625
  25. 658503
  26. 941192
  27. 226981
  28. 1728
  29. 405224
  30. 636056
  31. 636056
  32. 681472
  33. 287496
  34. 117649
  35. 531441
  36. 531441
  37. 74088
  38. 4913
  39. 250047
  40. 5832

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