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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 318 · 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. 1.52³ =
  2. 2.72³ =
  3. 3.51³ =
  4. 4.44³ =
  5. 5.14³ =
  6. 6.66³ =
  7. 7.28³ =
  8. 8.98³ =
  9. 9.25³ =
  10. 10.87³ =
  11. 11.99³ =
  12. 12.47³ =
  13. 13.56³ =
  14. 14.93³ =
  15. 15.42³ =
  16. 16.31³ =
  17. 17.69³ =
  18. 18.37³ =
  19. 19.51³ =
  20. 20.15³ =
  21. 21.75³ =
  22. 22.52³ =
  23. 23.57³ =
  24. 24.33³ =
  25. 25.21³ =
  26. 26.24³ =
  27. 27.34³ =
  28. 28.43³ =
  29. 29.21³ =
  30. 30.89³ =
  31. 31.42³ =
  32. 32.91³ =
  33. 33.97³ =
  34. 34.16³ =
  35. 35.52³ =
  36. 36.32³ =
  37. 37.65³ =
  38. 38.21³ =
  39. 39.95³ =
  40. 40.42³ =

Answer key

  1. 140608
  2. 373248
  3. 132651
  4. 85184
  5. 2744
  6. 287496
  7. 21952
  8. 941192
  9. 15625
  10. 658503
  11. 970299
  12. 103823
  13. 175616
  14. 804357
  15. 74088
  16. 29791
  17. 328509
  18. 50653
  19. 132651
  20. 3375
  21. 421875
  22. 140608
  23. 185193
  24. 35937
  25. 9261
  26. 13824
  27. 39304
  28. 79507
  29. 9261
  30. 704969
  31. 74088
  32. 753571
  33. 912673
  34. 4096
  35. 140608
  36. 32768
  37. 274625
  38. 9261
  39. 857375
  40. 74088

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