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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 19 · 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. 1.47³ =
  2. 2.28³ =
  3. 3.68³ =
  4. 4.81³ =
  5. 5.68³ =
  6. 6.83³ =
  7. 7.94³ =
  8. 8.47³ =
  9. 9.42³ =
  10. 10.53³ =
  11. 11.57³ =
  12. 12.38³ =
  13. 13.59³ =
  14. 14.79³ =
  15. 15.15³ =
  16. 16.19³ =
  17. 17.28³ =
  18. 18.93³ =
  19. 19.53³ =
  20. 20.71³ =
  21. 21.36³ =
  22. 22.56³ =
  23. 23.84³ =
  24. 24.61³ =
  25. 25.51³ =
  26. 26.53³ =
  27. 27.33³ =
  28. 28.81³ =
  29. 29.23³ =
  30. 30.51³ =
  31. 31.25³ =
  32. 32.99³ =
  33. 33.97³ =
  34. 34.77³ =
  35. 35.18³ =
  36. 36.76³ =
  37. 37.51³ =
  38. 38.16³ =
  39. 39.26³ =
  40. 40.51³ =

Answer key

  1. 103823
  2. 21952
  3. 314432
  4. 531441
  5. 314432
  6. 571787
  7. 830584
  8. 103823
  9. 74088
  10. 148877
  11. 185193
  12. 54872
  13. 205379
  14. 493039
  15. 3375
  16. 6859
  17. 21952
  18. 804357
  19. 148877
  20. 357911
  21. 46656
  22. 175616
  23. 592704
  24. 226981
  25. 132651
  26. 148877
  27. 35937
  28. 531441
  29. 12167
  30. 132651
  31. 15625
  32. 970299
  33. 912673
  34. 456533
  35. 5832
  36. 438976
  37. 132651
  38. 4096
  39. 17576
  40. 132651

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