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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 700 · 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. 2.95³ =
  3. 3.98³ =
  4. 4.103³ =
  5. 5.1007³ =
  6. 6.95³ =
  7. 7.108³ =
  8. 8.106³ =
  9. 9.1020³ =
  10. 10.1008³ =
  11. 11.1001³ =
  12. 12.1008³ =
  13. 13.107³ =
  14. 14.103³ =
  15. 15.106³ =
  16. 16.107³ =
  17. 17.97³ =
  18. 18.992³ =
  19. 19.1005³ =
  20. 20.984³ =
  21. 21.97³ =
  22. 22.103³ =
  23. 23.109³ =
  24. 24.993³ =
  25. 25.98³ =
  26. 26.1017³ =
  27. 27.93³ =
  28. 28.1015³ =
  29. 29.91³ =
  30. 30.1018³ =
  31. 31.103³ =
  32. 32.97³ =
  33. 33.97³ =
  34. 34.1005³ =
  35. 35.993³ =
  36. 36.105³ =
  37. 37.91³ =
  38. 38.102³ =
  39. 39.985³ =
  40. 40.1012³ =

Answer key

  1. 961504803
  2. 857375
  3. 941192
  4. 1092727
  5. 1021147343
  6. 857375
  7. 1259712
  8. 1191016
  9. 1061208000
  10. 1024192512
  11. 1003003001
  12. 1024192512
  13. 1225043
  14. 1092727
  15. 1191016
  16. 1225043
  17. 912673
  18. 976191488
  19. 1015075125
  20. 952763904
  21. 912673
  22. 1092727
  23. 1295029
  24. 979146657
  25. 941192
  26. 1051871913
  27. 804357
  28. 1045678375
  29. 753571
  30. 1054977832
  31. 1092727
  32. 912673
  33. 912673
  34. 1015075125
  35. 979146657
  36. 1157625
  37. 753571
  38. 1061208
  39. 955671625
  40. 1036433728

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