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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 642 · 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. 1.87³ =
  2. 2.64³ =
  3. 3.17³ =
  4. 4.46³ =
  5. 5.92³ =
  6. 6.57³ =
  7. 7.85³ =
  8. 8.32³ =
  9. 9.21³ =
  10. 10.88³ =
  11. 11.29³ =
  12. 12.73³ =
  13. 13.33³ =
  14. 14.22³ =
  15. 15.66³ =
  16. 16.19³ =
  17. 17.55³ =
  18. 18.66³ =
  19. 19.82³ =
  20. 20.63³ =
  21. 21.44³ =
  22. 22.71³ =
  23. 23.61³ =
  24. 24.16³ =
  25. 25.95³ =
  26. 26.98³ =
  27. 27.21³ =
  28. 28.97³ =
  29. 29.26³ =
  30. 30.75³ =
  31. 31.65³ =
  32. 32.88³ =
  33. 33.69³ =
  34. 34.61³ =
  35. 35.66³ =
  36. 36.97³ =
  37. 37.14³ =
  38. 38.95³ =
  39. 39.55³ =
  40. 40.41³ =

Answer key

  1. 658503
  2. 262144
  3. 4913
  4. 97336
  5. 778688
  6. 185193
  7. 614125
  8. 32768
  9. 9261
  10. 681472
  11. 24389
  12. 389017
  13. 35937
  14. 10648
  15. 287496
  16. 6859
  17. 166375
  18. 287496
  19. 551368
  20. 250047
  21. 85184
  22. 357911
  23. 226981
  24. 4096
  25. 857375
  26. 941192
  27. 9261
  28. 912673
  29. 17576
  30. 421875
  31. 274625
  32. 681472
  33. 328509
  34. 226981
  35. 287496
  36. 912673
  37. 2744
  38. 857375
  39. 166375
  40. 68921

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