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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 299 · 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. 1.22³ =
  2. 2.77³ =
  3. 3.71³ =
  4. 4.56³ =
  5. 5.14³ =
  6. 6.86³ =
  7. 7.41³ =
  8. 8.88³ =
  9. 9.79³ =
  10. 10.27³ =
  11. 11.53³ =
  12. 12.71³ =
  13. 13.75³ =
  14. 14.29³ =
  15. 15.95³ =
  16. 16.43³ =
  17. 17.25³ =
  18. 18.28³ =
  19. 19.79³ =
  20. 20.42³ =
  21. 21.43³ =
  22. 22.58³ =
  23. 23.91³ =
  24. 24.87³ =
  25. 25.27³ =
  26. 26.31³ =
  27. 27.36³ =
  28. 28.77³ =
  29. 29.87³ =
  30. 30.11³ =
  31. 31.13³ =
  32. 32.51³ =
  33. 33.55³ =
  34. 34.26³ =
  35. 35.82³ =
  36. 36.41³ =
  37. 37.13³ =
  38. 38.68³ =
  39. 39.97³ =
  40. 40.12³ =

Answer key

  1. 10648
  2. 456533
  3. 357911
  4. 175616
  5. 2744
  6. 636056
  7. 68921
  8. 681472
  9. 493039
  10. 19683
  11. 148877
  12. 357911
  13. 421875
  14. 24389
  15. 857375
  16. 79507
  17. 15625
  18. 21952
  19. 493039
  20. 74088
  21. 79507
  22. 195112
  23. 753571
  24. 658503
  25. 19683
  26. 29791
  27. 46656
  28. 456533
  29. 658503
  30. 1331
  31. 2197
  32. 132651
  33. 166375
  34. 17576
  35. 551368
  36. 68921
  37. 2197
  38. 314432
  39. 912673
  40. 1728

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