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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 509 · 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. 1.77³ =
  2. 2.39³ =
  3. 3.48³ =
  4. 4.22³ =
  5. 5.46³ =
  6. 6.75³ =
  7. 7.11³ =
  8. 8.26³ =
  9. 9.49³ =
  10. 10.82³ =
  11. 11.51³ =
  12. 12.71³ =
  13. 13.82³ =
  14. 14.62³ =
  15. 15.45³ =
  16. 16.26³ =
  17. 17.88³ =
  18. 18.41³ =
  19. 19.74³ =
  20. 20.77³ =
  21. 21.77³ =
  22. 22.12³ =
  23. 23.64³ =
  24. 24.19³ =
  25. 25.24³ =
  26. 26.28³ =
  27. 27.55³ =
  28. 28.42³ =
  29. 29.21³ =
  30. 30.21³ =
  31. 31.63³ =
  32. 32.42³ =
  33. 33.24³ =
  34. 34.97³ =
  35. 35.62³ =
  36. 36.62³ =
  37. 37.25³ =
  38. 38.77³ =
  39. 39.13³ =
  40. 40.41³ =

Answer key

  1. 456533
  2. 59319
  3. 110592
  4. 10648
  5. 97336
  6. 421875
  7. 1331
  8. 17576
  9. 117649
  10. 551368
  11. 132651
  12. 357911
  13. 551368
  14. 238328
  15. 91125
  16. 17576
  17. 681472
  18. 68921
  19. 405224
  20. 456533
  21. 456533
  22. 1728
  23. 262144
  24. 6859
  25. 13824
  26. 21952
  27. 166375
  28. 74088
  29. 9261
  30. 9261
  31. 250047
  32. 74088
  33. 13824
  34. 912673
  35. 238328
  36. 238328
  37. 15625
  38. 456533
  39. 2197
  40. 68921

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