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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 980 · 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. 1.104³ =
  2. 2.99³ =
  3. 3.1005³ =
  4. 4.992³ =
  5. 5.1005³ =
  6. 6.996³ =
  7. 7.999³ =
  8. 8.995³ =
  9. 9.108³ =
  10. 10.93³ =
  11. 11.93³ =
  12. 12.1015³ =
  13. 13.103³ =
  14. 14.94³ =
  15. 15.107³ =
  16. 16.1005³ =
  17. 17.99³ =
  18. 18.1004³ =
  19. 19.92³ =
  20. 20.1018³ =
  21. 21.96³ =
  22. 22.1019³ =
  23. 23.1016³ =
  24. 24.995³ =
  25. 25.101³ =
  26. 26.101³ =
  27. 27.1005³ =
  28. 28.993³ =
  29. 29.109³ =
  30. 30.102³ =
  31. 31.985³ =
  32. 32.990³ =
  33. 33.98³ =
  34. 34.102³ =
  35. 35.107³ =
  36. 36.103³ =
  37. 37.109³ =
  38. 38.994³ =
  39. 39.1018³ =
  40. 40.99³ =

Answer key

  1. 1124864
  2. 970299
  3. 1015075125
  4. 976191488
  5. 1015075125
  6. 988047936
  7. 997002999
  8. 985074875
  9. 1259712
  10. 804357
  11. 804357
  12. 1045678375
  13. 1092727
  14. 830584
  15. 1225043
  16. 1015075125
  17. 970299
  18. 1012048064
  19. 778688
  20. 1054977832
  21. 884736
  22. 1058089859
  23. 1048772096
  24. 985074875
  25. 1030301
  26. 1030301
  27. 1015075125
  28. 979146657
  29. 1295029
  30. 1061208
  31. 955671625
  32. 970299000
  33. 941192
  34. 1061208
  35. 1225043
  36. 1092727
  37. 1295029
  38. 982107784
  39. 1054977832
  40. 970299

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