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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 983 · 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. 1.102³ =
  2. 2.1020³ =
  3. 3.92³ =
  4. 4.98³ =
  5. 5.1001³ =
  6. 6.98³ =
  7. 7.108³ =
  8. 8.998³ =
  9. 9.996³ =
  10. 10.993³ =
  11. 11.102³ =
  12. 12.95³ =
  13. 13.983³ =
  14. 14.99³ =
  15. 15.990³ =
  16. 16.105³ =
  17. 17.1013³ =
  18. 18.992³ =
  19. 19.102³ =
  20. 20.1005³ =
  21. 21.93³ =
  22. 22.98³ =
  23. 23.101³ =
  24. 24.1009³ =
  25. 25.92³ =
  26. 26.93³ =
  27. 27.98³ =
  28. 28.96³ =
  29. 29.993³ =
  30. 30.107³ =
  31. 31.980³ =
  32. 32.1008³ =
  33. 33.107³ =
  34. 34.98³ =
  35. 35.1009³ =
  36. 36.109³ =
  37. 37.102³ =
  38. 38.97³ =
  39. 39.985³ =
  40. 40.1008³ =

Answer key

  1. 1061208
  2. 1061208000
  3. 778688
  4. 941192
  5. 1003003001
  6. 941192
  7. 1259712
  8. 994011992
  9. 988047936
  10. 979146657
  11. 1061208
  12. 857375
  13. 949862087
  14. 970299
  15. 970299000
  16. 1157625
  17. 1039509197
  18. 976191488
  19. 1061208
  20. 1015075125
  21. 804357
  22. 941192
  23. 1030301
  24. 1027243729
  25. 778688
  26. 804357
  27. 941192
  28. 884736
  29. 979146657
  30. 1225043
  31. 941192000
  32. 1024192512
  33. 1225043
  34. 941192
  35. 1027243729
  36. 1295029
  37. 1061208
  38. 912673
  39. 955671625
  40. 1024192512

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