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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 673 · 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. 1.84³ =
  2. 2.54³ =
  3. 3.39³ =
  4. 4.19³ =
  5. 5.92³ =
  6. 6.35³ =
  7. 7.59³ =
  8. 8.12³ =
  9. 9.85³ =
  10. 10.15³ =
  11. 11.61³ =
  12. 12.32³ =
  13. 13.63³ =
  14. 14.32³ =
  15. 15.58³ =
  16. 16.98³ =
  17. 17.35³ =
  18. 18.67³ =
  19. 19.76³ =
  20. 20.58³ =
  21. 21.94³ =
  22. 22.13³ =
  23. 23.78³ =
  24. 24.21³ =
  25. 25.14³ =
  26. 26.13³ =
  27. 27.11³ =
  28. 28.13³ =
  29. 29.91³ =
  30. 30.64³ =
  31. 31.98³ =
  32. 32.79³ =
  33. 33.92³ =
  34. 34.39³ =
  35. 35.87³ =
  36. 36.16³ =
  37. 37.46³ =
  38. 38.59³ =
  39. 39.24³ =
  40. 40.17³ =

Answer key

  1. 592704
  2. 157464
  3. 59319
  4. 6859
  5. 778688
  6. 42875
  7. 205379
  8. 1728
  9. 614125
  10. 3375
  11. 226981
  12. 32768
  13. 250047
  14. 32768
  15. 195112
  16. 941192
  17. 42875
  18. 300763
  19. 438976
  20. 195112
  21. 830584
  22. 2197
  23. 474552
  24. 9261
  25. 2744
  26. 2197
  27. 1331
  28. 2197
  29. 753571
  30. 262144
  31. 941192
  32. 493039
  33. 778688
  34. 59319
  35. 658503
  36. 4096
  37. 97336
  38. 205379
  39. 13824
  40. 4913

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