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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 863 · 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. 1.69³ =
  2. 2.68³ =
  3. 3.29³ =
  4. 4.68³ =
  5. 5.16³ =
  6. 6.66³ =
  7. 7.58³ =
  8. 8.51³ =
  9. 9.29³ =
  10. 10.17³ =
  11. 11.18³ =
  12. 12.69³ =
  13. 13.96³ =
  14. 14.52³ =
  15. 15.46³ =
  16. 16.72³ =
  17. 17.53³ =
  18. 18.71³ =
  19. 19.19³ =
  20. 20.83³ =
  21. 21.74³ =
  22. 22.22³ =
  23. 23.21³ =
  24. 24.93³ =
  25. 25.54³ =
  26. 26.69³ =
  27. 27.23³ =
  28. 28.51³ =
  29. 29.82³ =
  30. 30.41³ =
  31. 31.74³ =
  32. 32.57³ =
  33. 33.57³ =
  34. 34.24³ =
  35. 35.26³ =
  36. 36.65³ =
  37. 37.49³ =
  38. 38.92³ =
  39. 39.74³ =
  40. 40.77³ =

Answer key

  1. 328509
  2. 314432
  3. 24389
  4. 314432
  5. 4096
  6. 287496
  7. 195112
  8. 132651
  9. 24389
  10. 4913
  11. 5832
  12. 328509
  13. 884736
  14. 140608
  15. 97336
  16. 373248
  17. 148877
  18. 357911
  19. 6859
  20. 571787
  21. 405224
  22. 10648
  23. 9261
  24. 804357
  25. 157464
  26. 328509
  27. 12167
  28. 132651
  29. 551368
  30. 68921
  31. 405224
  32. 185193
  33. 185193
  34. 13824
  35. 17576
  36. 274625
  37. 117649
  38. 778688
  39. 405224
  40. 456533

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