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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 243 · 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. 1.980³ =
  2. 2.92³ =
  3. 3.105³ =
  4. 4.107³ =
  5. 5.994³ =
  6. 6.97³ =
  7. 7.97³ =
  8. 8.1008³ =
  9. 9.995³ =
  10. 10.101³ =
  11. 11.989³ =
  12. 12.1006³ =
  13. 13.95³ =
  14. 14.92³ =
  15. 15.990³ =
  16. 16.996³ =
  17. 17.995³ =
  18. 18.993³ =
  19. 19.97³ =
  20. 20.1010³ =
  21. 21.1011³ =
  22. 22.1005³ =
  23. 23.99³ =
  24. 24.1017³ =
  25. 25.996³ =
  26. 26.985³ =
  27. 27.107³ =
  28. 28.108³ =
  29. 29.102³ =
  30. 30.99³ =
  31. 31.1009³ =
  32. 32.102³ =
  33. 33.102³ =
  34. 34.998³ =
  35. 35.96³ =
  36. 36.108³ =
  37. 37.104³ =
  38. 38.95³ =
  39. 39.988³ =
  40. 40.1019³ =

Answer key

  1. 941192000
  2. 778688
  3. 1157625
  4. 1225043
  5. 982107784
  6. 912673
  7. 912673
  8. 1024192512
  9. 985074875
  10. 1030301
  11. 967361669
  12. 1018108216
  13. 857375
  14. 778688
  15. 970299000
  16. 988047936
  17. 985074875
  18. 979146657
  19. 912673
  20. 1030301000
  21. 1033364331
  22. 1015075125
  23. 970299
  24. 1051871913
  25. 988047936
  26. 955671625
  27. 1225043
  28. 1259712
  29. 1061208
  30. 970299
  31. 1027243729
  32. 1061208
  33. 1061208
  34. 994011992
  35. 884736
  36. 1259712
  37. 1124864
  38. 857375
  39. 964430272
  40. 1058089859

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