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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 453 · 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. 1.91³ =
  2. 2.15³ =
  3. 3.98³ =
  4. 4.91³ =
  5. 5.72³ =
  6. 6.33³ =
  7. 7.65³ =
  8. 8.38³ =
  9. 9.59³ =
  10. 10.21³ =
  11. 11.53³ =
  12. 12.81³ =
  13. 13.77³ =
  14. 14.96³ =
  15. 15.51³ =
  16. 16.85³ =
  17. 17.11³ =
  18. 18.68³ =
  19. 19.98³ =
  20. 20.75³ =
  21. 21.26³ =
  22. 22.21³ =
  23. 23.52³ =
  24. 24.64³ =
  25. 25.81³ =
  26. 26.66³ =
  27. 27.97³ =
  28. 28.48³ =
  29. 29.11³ =
  30. 30.25³ =
  31. 31.47³ =
  32. 32.67³ =
  33. 33.23³ =
  34. 34.19³ =
  35. 35.44³ =
  36. 36.52³ =
  37. 37.52³ =
  38. 38.93³ =
  39. 39.17³ =
  40. 40.39³ =

Answer key

  1. 753571
  2. 3375
  3. 941192
  4. 753571
  5. 373248
  6. 35937
  7. 274625
  8. 54872
  9. 205379
  10. 9261
  11. 148877
  12. 531441
  13. 456533
  14. 884736
  15. 132651
  16. 614125
  17. 1331
  18. 314432
  19. 941192
  20. 421875
  21. 17576
  22. 9261
  23. 140608
  24. 262144
  25. 531441
  26. 287496
  27. 912673
  28. 110592
  29. 1331
  30. 15625
  31. 103823
  32. 300763
  33. 12167
  34. 6859
  35. 85184
  36. 140608
  37. 140608
  38. 804357
  39. 4913
  40. 59319

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