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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 5 · 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. 1.62³ =
  2. 2.37³ =
  3. 3.51³ =
  4. 4.86³ =
  5. 5.44³ =
  6. 6.21³ =
  7. 7.56³ =
  8. 8.95³ =
  9. 9.24³ =
  10. 10.51³ =
  11. 11.64³ =
  12. 12.86³ =
  13. 13.13³ =
  14. 14.96³ =
  15. 15.31³ =
  16. 16.36³ =
  17. 17.69³ =
  18. 18.74³ =
  19. 19.47³ =
  20. 20.91³ =
  21. 21.41³ =
  22. 22.12³ =
  23. 23.37³ =
  24. 24.69³ =
  25. 25.45³ =
  26. 26.69³ =
  27. 27.62³ =
  28. 28.26³ =
  29. 29.31³ =
  30. 30.86³ =
  31. 31.18³ =
  32. 32.89³ =
  33. 33.84³ =
  34. 34.59³ =
  35. 35.24³ =
  36. 36.48³ =
  37. 37.81³ =
  38. 38.95³ =
  39. 39.19³ =
  40. 40.98³ =

Answer key

  1. 238328
  2. 50653
  3. 132651
  4. 636056
  5. 85184
  6. 9261
  7. 175616
  8. 857375
  9. 13824
  10. 132651
  11. 262144
  12. 636056
  13. 2197
  14. 884736
  15. 29791
  16. 46656
  17. 328509
  18. 405224
  19. 103823
  20. 753571
  21. 68921
  22. 1728
  23. 50653
  24. 328509
  25. 91125
  26. 328509
  27. 238328
  28. 17576
  29. 29791
  30. 636056
  31. 5832
  32. 704969
  33. 592704
  34. 205379
  35. 13824
  36. 110592
  37. 531441
  38. 857375
  39. 6859
  40. 941192

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