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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 705 · 40 sums
TalentJR

The trick (Yavadunam): Left part: the number + twice the difference. Middle part: 3 × the difference squared. Right part: the difference cubed. Each right-hand part has as many digits as the base has zeros — carry the extra, borrow if a part is negative.

NameDateTime takenScore ___ / 40
  1. 1.987³ =
  2. 2.1015³ =
  3. 3.96³ =
  4. 4.91³ =
  5. 5.1011³ =
  6. 6.1011³ =
  7. 7.994³ =
  8. 8.109³ =
  9. 9.91³ =
  10. 10.104³ =
  11. 11.99³ =
  12. 12.104³ =
  13. 13.102³ =
  14. 14.981³ =
  15. 15.102³ =
  16. 16.103³ =
  17. 17.109³ =
  18. 18.989³ =
  19. 19.1007³ =
  20. 20.1015³ =
  21. 21.102³ =
  22. 22.104³ =
  23. 23.109³ =
  24. 24.95³ =
  25. 25.98³ =
  26. 26.104³ =
  27. 27.97³ =
  28. 28.1015³ =
  29. 29.93³ =
  30. 30.91³ =
  31. 31.1003³ =
  32. 32.108³ =
  33. 33.992³ =
  34. 34.95³ =
  35. 35.1012³ =
  36. 36.105³ =
  37. 37.1016³ =
  38. 38.1011³ =
  39. 39.107³ =
  40. 40.92³ =

Answer key

  1. 961504803
  2. 1045678375
  3. 884736
  4. 753571
  5. 1033364331
  6. 1033364331
  7. 982107784
  8. 1295029
  9. 753571
  10. 1124864
  11. 970299
  12. 1124864
  13. 1061208
  14. 944076141
  15. 1061208
  16. 1092727
  17. 1295029
  18. 967361669
  19. 1021147343
  20. 1045678375
  21. 1061208
  22. 1124864
  23. 1295029
  24. 857375
  25. 941192
  26. 1124864
  27. 912673
  28. 1045678375
  29. 804357
  30. 753571
  31. 1009027027
  32. 1259712
  33. 976191488
  34. 857375
  35. 1036433728
  36. 1157625
  37. 1048772096
  38. 1033364331
  39. 1225043
  40. 778688

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