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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 819 · 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. 1.981³ =
  2. 2.97³ =
  3. 3.95³ =
  4. 4.1004³ =
  5. 5.987³ =
  6. 6.91³ =
  7. 7.1007³ =
  8. 8.108³ =
  9. 9.101³ =
  10. 10.995³ =
  11. 11.1016³ =
  12. 12.99³ =
  13. 13.109³ =
  14. 14.103³ =
  15. 15.995³ =
  16. 16.108³ =
  17. 17.986³ =
  18. 18.98³ =
  19. 19.980³ =
  20. 20.107³ =
  21. 21.997³ =
  22. 22.92³ =
  23. 23.106³ =
  24. 24.1012³ =
  25. 25.1005³ =
  26. 26.101³ =
  27. 27.1018³ =
  28. 28.95³ =
  29. 29.1001³ =
  30. 30.103³ =
  31. 31.986³ =
  32. 32.994³ =
  33. 33.986³ =
  34. 34.988³ =
  35. 35.93³ =
  36. 36.1005³ =
  37. 37.96³ =
  38. 38.94³ =
  39. 39.991³ =
  40. 40.97³ =

Answer key

  1. 944076141
  2. 912673
  3. 857375
  4. 1012048064
  5. 961504803
  6. 753571
  7. 1021147343
  8. 1259712
  9. 1030301
  10. 985074875
  11. 1048772096
  12. 970299
  13. 1295029
  14. 1092727
  15. 985074875
  16. 1259712
  17. 958585256
  18. 941192
  19. 941192000
  20. 1225043
  21. 991026973
  22. 778688
  23. 1191016
  24. 1036433728
  25. 1015075125
  26. 1030301
  27. 1054977832
  28. 857375
  29. 1003003001
  30. 1092727
  31. 958585256
  32. 982107784
  33. 958585256
  34. 964430272
  35. 804357
  36. 1015075125
  37. 884736
  38. 830584
  39. 973242271
  40. 912673

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