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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 995 · 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. 1.88³ =
  2. 2.19³ =
  3. 3.36³ =
  4. 4.29³ =
  5. 5.13³ =
  6. 6.22³ =
  7. 7.12³ =
  8. 8.76³ =
  9. 9.97³ =
  10. 10.28³ =
  11. 11.79³ =
  12. 12.92³ =
  13. 13.35³ =
  14. 14.26³ =
  15. 15.29³ =
  16. 16.51³ =
  17. 17.36³ =
  18. 18.33³ =
  19. 19.81³ =
  20. 20.31³ =
  21. 21.38³ =
  22. 22.12³ =
  23. 23.21³ =
  24. 24.13³ =
  25. 25.79³ =
  26. 26.98³ =
  27. 27.91³ =
  28. 28.83³ =
  29. 29.52³ =
  30. 30.64³ =
  31. 31.18³ =
  32. 32.41³ =
  33. 33.73³ =
  34. 34.63³ =
  35. 35.31³ =
  36. 36.45³ =
  37. 37.71³ =
  38. 38.28³ =
  39. 39.96³ =
  40. 40.71³ =

Answer key

  1. 681472
  2. 6859
  3. 46656
  4. 24389
  5. 2197
  6. 10648
  7. 1728
  8. 438976
  9. 912673
  10. 21952
  11. 493039
  12. 778688
  13. 42875
  14. 17576
  15. 24389
  16. 132651
  17. 46656
  18. 35937
  19. 531441
  20. 29791
  21. 54872
  22. 1728
  23. 9261
  24. 2197
  25. 493039
  26. 941192
  27. 753571
  28. 571787
  29. 140608
  30. 262144
  31. 5832
  32. 68921
  33. 389017
  34. 250047
  35. 29791
  36. 91125
  37. 357911
  38. 21952
  39. 884736
  40. 357911

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