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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 307 · 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. 2.45³ =
  3. 3.74³ =
  4. 4.37³ =
  5. 5.74³ =
  6. 6.26³ =
  7. 7.51³ =
  8. 8.75³ =
  9. 9.73³ =
  10. 10.46³ =
  11. 11.74³ =
  12. 12.48³ =
  13. 13.46³ =
  14. 14.72³ =
  15. 15.26³ =
  16. 16.72³ =
  17. 17.15³ =
  18. 18.53³ =
  19. 19.98³ =
  20. 20.53³ =
  21. 21.67³ =
  22. 22.56³ =
  23. 23.79³ =
  24. 24.84³ =
  25. 25.14³ =
  26. 26.86³ =
  27. 27.77³ =
  28. 28.72³ =
  29. 29.37³ =
  30. 30.61³ =
  31. 31.61³ =
  32. 32.51³ =
  33. 33.16³ =
  34. 34.49³ =
  35. 35.63³ =
  36. 36.59³ =
  37. 37.91³ =
  38. 38.41³ =
  39. 39.24³ =
  40. 40.95³ =

Answer key

  1. 39304
  2. 91125
  3. 405224
  4. 50653
  5. 405224
  6. 17576
  7. 132651
  8. 421875
  9. 389017
  10. 97336
  11. 405224
  12. 110592
  13. 97336
  14. 373248
  15. 17576
  16. 373248
  17. 3375
  18. 148877
  19. 941192
  20. 148877
  21. 300763
  22. 175616
  23. 493039
  24. 592704
  25. 2744
  26. 636056
  27. 456533
  28. 373248
  29. 50653
  30. 226981
  31. 226981
  32. 132651
  33. 4096
  34. 117649
  35. 250047
  36. 205379
  37. 753571
  38. 68921
  39. 13824
  40. 857375

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