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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 779 · 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. 1.1008³ =
  2. 2.1006³ =
  3. 3.106³ =
  4. 4.97³ =
  5. 5.97³ =
  6. 6.101³ =
  7. 7.91³ =
  8. 8.1017³ =
  9. 9.94³ =
  10. 10.1012³ =
  11. 11.997³ =
  12. 12.92³ =
  13. 13.1015³ =
  14. 14.1007³ =
  15. 15.1017³ =
  16. 16.1001³ =
  17. 17.94³ =
  18. 18.1014³ =
  19. 19.996³ =
  20. 20.1014³ =
  21. 21.93³ =
  22. 22.106³ =
  23. 23.999³ =
  24. 24.984³ =
  25. 25.92³ =
  26. 26.99³ =
  27. 27.1002³ =
  28. 28.99³ =
  29. 29.91³ =
  30. 30.990³ =
  31. 31.997³ =
  32. 32.105³ =
  33. 33.91³ =
  34. 34.98³ =
  35. 35.108³ =
  36. 36.1005³ =
  37. 37.103³ =
  38. 38.92³ =
  39. 39.103³ =
  40. 40.91³ =

Answer key

  1. 1024192512
  2. 1018108216
  3. 1191016
  4. 912673
  5. 912673
  6. 1030301
  7. 753571
  8. 1051871913
  9. 830584
  10. 1036433728
  11. 991026973
  12. 778688
  13. 1045678375
  14. 1021147343
  15. 1051871913
  16. 1003003001
  17. 830584
  18. 1042590744
  19. 988047936
  20. 1042590744
  21. 804357
  22. 1191016
  23. 997002999
  24. 952763904
  25. 778688
  26. 970299
  27. 1006012008
  28. 970299
  29. 753571
  30. 970299000
  31. 991026973
  32. 1157625
  33. 753571
  34. 941192
  35. 1259712
  36. 1015075125
  37. 1092727
  38. 778688
  39. 1092727
  40. 753571

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