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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 223 · 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. 1.98³ =
  2. 2.56³ =
  3. 3.16³ =
  4. 4.81³ =
  5. 5.35³ =
  6. 6.71³ =
  7. 7.22³ =
  8. 8.43³ =
  9. 9.24³ =
  10. 10.88³ =
  11. 11.11³ =
  12. 12.55³ =
  13. 13.14³ =
  14. 14.34³ =
  15. 15.55³ =
  16. 16.59³ =
  17. 17.37³ =
  18. 18.68³ =
  19. 19.21³ =
  20. 20.31³ =
  21. 21.23³ =
  22. 22.99³ =
  23. 23.83³ =
  24. 24.92³ =
  25. 25.62³ =
  26. 26.92³ =
  27. 27.23³ =
  28. 28.33³ =
  29. 29.34³ =
  30. 30.16³ =
  31. 31.25³ =
  32. 32.65³ =
  33. 33.37³ =
  34. 34.11³ =
  35. 35.25³ =
  36. 36.18³ =
  37. 37.76³ =
  38. 38.37³ =
  39. 39.92³ =
  40. 40.56³ =

Answer key

  1. 941192
  2. 175616
  3. 4096
  4. 531441
  5. 42875
  6. 357911
  7. 10648
  8. 79507
  9. 13824
  10. 681472
  11. 1331
  12. 166375
  13. 2744
  14. 39304
  15. 166375
  16. 205379
  17. 50653
  18. 314432
  19. 9261
  20. 29791
  21. 12167
  22. 970299
  23. 571787
  24. 778688
  25. 238328
  26. 778688
  27. 12167
  28. 35937
  29. 39304
  30. 4096
  31. 15625
  32. 274625
  33. 50653
  34. 1331
  35. 15625
  36. 5832
  37. 438976
  38. 50653
  39. 778688
  40. 175616

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