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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 646 · 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. 2.37³ =
  3. 3.35³ =
  4. 4.65³ =
  5. 5.19³ =
  6. 6.45³ =
  7. 7.49³ =
  8. 8.35³ =
  9. 9.49³ =
  10. 10.17³ =
  11. 11.88³ =
  12. 12.71³ =
  13. 13.16³ =
  14. 14.46³ =
  15. 15.54³ =
  16. 16.16³ =
  17. 17.85³ =
  18. 18.68³ =
  19. 19.24³ =
  20. 20.88³ =
  21. 21.25³ =
  22. 22.94³ =
  23. 23.19³ =
  24. 24.41³ =
  25. 25.53³ =
  26. 26.81³ =
  27. 27.83³ =
  28. 28.27³ =
  29. 29.22³ =
  30. 30.11³ =
  31. 31.36³ =
  32. 32.43³ =
  33. 33.33³ =
  34. 34.54³ =
  35. 35.46³ =
  36. 36.81³ =
  37. 37.33³ =
  38. 38.41³ =
  39. 39.81³ =
  40. 40.79³ =

Answer key

  1. 157464
  2. 50653
  3. 42875
  4. 274625
  5. 6859
  6. 91125
  7. 117649
  8. 42875
  9. 117649
  10. 4913
  11. 681472
  12. 357911
  13. 4096
  14. 97336
  15. 157464
  16. 4096
  17. 614125
  18. 314432
  19. 13824
  20. 681472
  21. 15625
  22. 830584
  23. 6859
  24. 68921
  25. 148877
  26. 531441
  27. 571787
  28. 19683
  29. 10648
  30. 1331
  31. 46656
  32. 79507
  33. 35937
  34. 157464
  35. 97336
  36. 531441
  37. 35937
  38. 68921
  39. 531441
  40. 493039

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