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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 917 · 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. 2.52³ =
  3. 3.47³ =
  4. 4.83³ =
  5. 5.14³ =
  6. 6.51³ =
  7. 7.19³ =
  8. 8.21³ =
  9. 9.63³ =
  10. 10.73³ =
  11. 11.59³ =
  12. 12.42³ =
  13. 13.79³ =
  14. 14.92³ =
  15. 15.11³ =
  16. 16.22³ =
  17. 17.22³ =
  18. 18.16³ =
  19. 19.36³ =
  20. 20.54³ =
  21. 21.76³ =
  22. 22.32³ =
  23. 23.52³ =
  24. 24.98³ =
  25. 25.29³ =
  26. 26.21³ =
  27. 27.97³ =
  28. 28.57³ =
  29. 29.19³ =
  30. 30.85³ =
  31. 31.41³ =
  32. 32.31³ =
  33. 33.91³ =
  34. 34.57³ =
  35. 35.75³ =
  36. 36.54³ =
  37. 37.22³ =
  38. 38.15³ =
  39. 39.27³ =
  40. 40.99³ =

Answer key

  1. 753571
  2. 140608
  3. 103823
  4. 571787
  5. 2744
  6. 132651
  7. 6859
  8. 9261
  9. 250047
  10. 389017
  11. 205379
  12. 74088
  13. 493039
  14. 778688
  15. 1331
  16. 10648
  17. 10648
  18. 4096
  19. 46656
  20. 157464
  21. 438976
  22. 32768
  23. 140608
  24. 941192
  25. 24389
  26. 9261
  27. 912673
  28. 185193
  29. 6859
  30. 614125
  31. 68921
  32. 29791
  33. 753571
  34. 185193
  35. 421875
  36. 157464
  37. 10648
  38. 3375
  39. 19683
  40. 970299

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