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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 167 · 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. 1.62³ =
  2. 2.79³ =
  3. 3.16³ =
  4. 4.82³ =
  5. 5.87³ =
  6. 6.41³ =
  7. 7.41³ =
  8. 8.91³ =
  9. 9.77³ =
  10. 10.75³ =
  11. 11.38³ =
  12. 12.78³ =
  13. 13.35³ =
  14. 14.85³ =
  15. 15.86³ =
  16. 16.84³ =
  17. 17.46³ =
  18. 18.56³ =
  19. 19.29³ =
  20. 20.26³ =
  21. 21.25³ =
  22. 22.18³ =
  23. 23.32³ =
  24. 24.45³ =
  25. 25.61³ =
  26. 26.11³ =
  27. 27.17³ =
  28. 28.35³ =
  29. 29.59³ =
  30. 30.36³ =
  31. 31.16³ =
  32. 32.43³ =
  33. 33.88³ =
  34. 34.91³ =
  35. 35.22³ =
  36. 36.75³ =
  37. 37.63³ =
  38. 38.21³ =
  39. 39.71³ =
  40. 40.22³ =

Answer key

  1. 238328
  2. 493039
  3. 4096
  4. 551368
  5. 658503
  6. 68921
  7. 68921
  8. 753571
  9. 456533
  10. 421875
  11. 54872
  12. 474552
  13. 42875
  14. 614125
  15. 636056
  16. 592704
  17. 97336
  18. 175616
  19. 24389
  20. 17576
  21. 15625
  22. 5832
  23. 32768
  24. 91125
  25. 226981
  26. 1331
  27. 4913
  28. 42875
  29. 205379
  30. 46656
  31. 4096
  32. 79507
  33. 681472
  34. 753571
  35. 10648
  36. 421875
  37. 250047
  38. 9261
  39. 357911
  40. 10648

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