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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 563 · 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. 1.85³ =
  2. 2.72³ =
  3. 3.32³ =
  4. 4.48³ =
  5. 5.12³ =
  6. 6.53³ =
  7. 7.45³ =
  8. 8.19³ =
  9. 9.35³ =
  10. 10.22³ =
  11. 11.43³ =
  12. 12.87³ =
  13. 13.71³ =
  14. 14.51³ =
  15. 15.56³ =
  16. 16.12³ =
  17. 17.59³ =
  18. 18.88³ =
  19. 19.41³ =
  20. 20.89³ =
  21. 21.48³ =
  22. 22.92³ =
  23. 23.81³ =
  24. 24.12³ =
  25. 25.52³ =
  26. 26.36³ =
  27. 27.92³ =
  28. 28.52³ =
  29. 29.75³ =
  30. 30.42³ =
  31. 31.35³ =
  32. 32.22³ =
  33. 33.11³ =
  34. 34.44³ =
  35. 35.51³ =
  36. 36.16³ =
  37. 37.72³ =
  38. 38.47³ =
  39. 39.92³ =
  40. 40.96³ =

Answer key

  1. 614125
  2. 373248
  3. 32768
  4. 110592
  5. 1728
  6. 148877
  7. 91125
  8. 6859
  9. 42875
  10. 10648
  11. 79507
  12. 658503
  13. 357911
  14. 132651
  15. 175616
  16. 1728
  17. 205379
  18. 681472
  19. 68921
  20. 704969
  21. 110592
  22. 778688
  23. 531441
  24. 1728
  25. 140608
  26. 46656
  27. 778688
  28. 140608
  29. 421875
  30. 74088
  31. 42875
  32. 10648
  33. 1331
  34. 85184
  35. 132651
  36. 4096
  37. 373248
  38. 103823
  39. 778688
  40. 884736

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