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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 774 · 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. 1.89³ =
  2. 2.51³ =
  3. 3.38³ =
  4. 4.15³ =
  5. 5.45³ =
  6. 6.21³ =
  7. 7.95³ =
  8. 8.83³ =
  9. 9.13³ =
  10. 10.19³ =
  11. 11.81³ =
  12. 12.44³ =
  13. 13.41³ =
  14. 14.66³ =
  15. 15.79³ =
  16. 16.27³ =
  17. 17.21³ =
  18. 18.57³ =
  19. 19.52³ =
  20. 20.36³ =
  21. 21.89³ =
  22. 22.53³ =
  23. 23.25³ =
  24. 24.56³ =
  25. 25.44³ =
  26. 26.33³ =
  27. 27.32³ =
  28. 28.48³ =
  29. 29.52³ =
  30. 30.88³ =
  31. 31.51³ =
  32. 32.83³ =
  33. 33.15³ =
  34. 34.57³ =
  35. 35.99³ =
  36. 36.14³ =
  37. 37.38³ =
  38. 38.19³ =
  39. 39.27³ =
  40. 40.18³ =

Answer key

  1. 704969
  2. 132651
  3. 54872
  4. 3375
  5. 91125
  6. 9261
  7. 857375
  8. 571787
  9. 2197
  10. 6859
  11. 531441
  12. 85184
  13. 68921
  14. 287496
  15. 493039
  16. 19683
  17. 9261
  18. 185193
  19. 140608
  20. 46656
  21. 704969
  22. 148877
  23. 15625
  24. 175616
  25. 85184
  26. 35937
  27. 32768
  28. 110592
  29. 140608
  30. 681472
  31. 132651
  32. 571787
  33. 3375
  34. 185193
  35. 970299
  36. 2744
  37. 54872
  38. 6859
  39. 19683
  40. 5832

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