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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 267 · 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. 1.13³ =
  2. 2.69³ =
  3. 3.69³ =
  4. 4.11³ =
  5. 5.87³ =
  6. 6.99³ =
  7. 7.98³ =
  8. 8.95³ =
  9. 9.37³ =
  10. 10.83³ =
  11. 11.26³ =
  12. 12.29³ =
  13. 13.94³ =
  14. 14.51³ =
  15. 15.93³ =
  16. 16.21³ =
  17. 17.65³ =
  18. 18.69³ =
  19. 19.49³ =
  20. 20.19³ =
  21. 21.77³ =
  22. 22.19³ =
  23. 23.68³ =
  24. 24.33³ =
  25. 25.74³ =
  26. 26.69³ =
  27. 27.17³ =
  28. 28.54³ =
  29. 29.59³ =
  30. 30.83³ =
  31. 31.28³ =
  32. 32.42³ =
  33. 33.78³ =
  34. 34.57³ =
  35. 35.18³ =
  36. 36.79³ =
  37. 37.95³ =
  38. 38.81³ =
  39. 39.22³ =
  40. 40.27³ =

Answer key

  1. 2197
  2. 328509
  3. 328509
  4. 1331
  5. 658503
  6. 970299
  7. 941192
  8. 857375
  9. 50653
  10. 571787
  11. 17576
  12. 24389
  13. 830584
  14. 132651
  15. 804357
  16. 9261
  17. 274625
  18. 328509
  19. 117649
  20. 6859
  21. 456533
  22. 6859
  23. 314432
  24. 35937
  25. 405224
  26. 328509
  27. 4913
  28. 157464
  29. 205379
  30. 571787
  31. 21952
  32. 74088
  33. 474552
  34. 185193
  35. 5832
  36. 493039
  37. 857375
  38. 531441
  39. 10648
  40. 19683

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