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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 390 · 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. 1.98³ =
  2. 2.97³ =
  3. 3.1006³ =
  4. 4.999³ =
  5. 5.1020³ =
  6. 6.97³ =
  7. 7.105³ =
  8. 8.102³ =
  9. 9.93³ =
  10. 10.92³ =
  11. 11.96³ =
  12. 12.1019³ =
  13. 13.98³ =
  14. 14.1005³ =
  15. 15.99³ =
  16. 16.991³ =
  17. 17.101³ =
  18. 18.108³ =
  19. 19.94³ =
  20. 20.94³ =
  21. 21.109³ =
  22. 22.1006³ =
  23. 23.991³ =
  24. 24.91³ =
  25. 25.107³ =
  26. 26.981³ =
  27. 27.997³ =
  28. 28.991³ =
  29. 29.101³ =
  30. 30.95³ =
  31. 31.1015³ =
  32. 32.995³ =
  33. 33.104³ =
  34. 34.105³ =
  35. 35.1011³ =
  36. 36.105³ =
  37. 37.97³ =
  38. 38.104³ =
  39. 39.983³ =
  40. 40.987³ =

Answer key

  1. 941192
  2. 912673
  3. 1018108216
  4. 997002999
  5. 1061208000
  6. 912673
  7. 1157625
  8. 1061208
  9. 804357
  10. 778688
  11. 884736
  12. 1058089859
  13. 941192
  14. 1015075125
  15. 970299
  16. 973242271
  17. 1030301
  18. 1259712
  19. 830584
  20. 830584
  21. 1295029
  22. 1018108216
  23. 973242271
  24. 753571
  25. 1225043
  26. 944076141
  27. 991026973
  28. 973242271
  29. 1030301
  30. 857375
  31. 1045678375
  32. 985074875
  33. 1124864
  34. 1157625
  35. 1033364331
  36. 1157625
  37. 912673
  38. 1124864
  39. 949862087
  40. 961504803

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