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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 40 · 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. 1.35³ =
  2. 2.86³ =
  3. 3.52³ =
  4. 4.31³ =
  5. 5.48³ =
  6. 6.77³ =
  7. 7.36³ =
  8. 8.48³ =
  9. 9.52³ =
  10. 10.44³ =
  11. 11.45³ =
  12. 12.37³ =
  13. 13.42³ =
  14. 14.51³ =
  15. 15.19³ =
  16. 16.73³ =
  17. 17.41³ =
  18. 18.86³ =
  19. 19.17³ =
  20. 20.43³ =
  21. 21.11³ =
  22. 22.52³ =
  23. 23.63³ =
  24. 24.95³ =
  25. 25.92³ =
  26. 26.86³ =
  27. 27.47³ =
  28. 28.23³ =
  29. 29.56³ =
  30. 30.21³ =
  31. 31.81³ =
  32. 32.36³ =
  33. 33.21³ =
  34. 34.31³ =
  35. 35.94³ =
  36. 36.78³ =
  37. 37.42³ =
  38. 38.86³ =
  39. 39.17³ =
  40. 40.56³ =

Answer key

  1. 42875
  2. 636056
  3. 140608
  4. 29791
  5. 110592
  6. 456533
  7. 46656
  8. 110592
  9. 140608
  10. 85184
  11. 91125
  12. 50653
  13. 74088
  14. 132651
  15. 6859
  16. 389017
  17. 68921
  18. 636056
  19. 4913
  20. 79507
  21. 1331
  22. 140608
  23. 250047
  24. 857375
  25. 778688
  26. 636056
  27. 103823
  28. 12167
  29. 175616
  30. 9261
  31. 531441
  32. 46656
  33. 9261
  34. 29791
  35. 830584
  36. 474552
  37. 74088
  38. 636056
  39. 4913
  40. 175616

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