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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 648 · 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. 1.54³ =
  2. 2.39³ =
  3. 3.85³ =
  4. 4.72³ =
  5. 5.28³ =
  6. 6.49³ =
  7. 7.88³ =
  8. 8.72³ =
  9. 9.46³ =
  10. 10.55³ =
  11. 11.71³ =
  12. 12.13³ =
  13. 13.43³ =
  14. 14.34³ =
  15. 15.93³ =
  16. 16.91³ =
  17. 17.51³ =
  18. 18.45³ =
  19. 19.88³ =
  20. 20.98³ =
  21. 21.52³ =
  22. 22.22³ =
  23. 23.85³ =
  24. 24.41³ =
  25. 25.66³ =
  26. 26.95³ =
  27. 27.22³ =
  28. 28.14³ =
  29. 29.91³ =
  30. 30.56³ =
  31. 31.67³ =
  32. 32.92³ =
  33. 33.71³ =
  34. 34.65³ =
  35. 35.43³ =
  36. 36.72³ =
  37. 37.95³ =
  38. 38.28³ =
  39. 39.83³ =
  40. 40.31³ =

Answer key

  1. 157464
  2. 59319
  3. 614125
  4. 373248
  5. 21952
  6. 117649
  7. 681472
  8. 373248
  9. 97336
  10. 166375
  11. 357911
  12. 2197
  13. 79507
  14. 39304
  15. 804357
  16. 753571
  17. 132651
  18. 91125
  19. 681472
  20. 941192
  21. 140608
  22. 10648
  23. 614125
  24. 68921
  25. 287496
  26. 857375
  27. 10648
  28. 2744
  29. 753571
  30. 175616
  31. 300763
  32. 778688
  33. 357911
  34. 274625
  35. 79507
  36. 373248
  37. 857375
  38. 21952
  39. 571787
  40. 29791

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