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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 70 · 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. 1.993³ =
  2. 2.105³ =
  3. 3.105³ =
  4. 4.991³ =
  5. 5.109³ =
  6. 6.1017³ =
  7. 7.1018³ =
  8. 8.107³ =
  9. 9.990³ =
  10. 10.986³ =
  11. 11.1020³ =
  12. 12.1009³ =
  13. 13.985³ =
  14. 14.102³ =
  15. 15.109³ =
  16. 16.996³ =
  17. 17.99³ =
  18. 18.106³ =
  19. 19.97³ =
  20. 20.991³ =
  21. 21.104³ =
  22. 22.992³ =
  23. 23.102³ =
  24. 24.1005³ =
  25. 25.1017³ =
  26. 26.95³ =
  27. 27.1008³ =
  28. 28.96³ =
  29. 29.91³ =
  30. 30.94³ =
  31. 31.98³ =
  32. 32.1008³ =
  33. 33.95³ =
  34. 34.1017³ =
  35. 35.95³ =
  36. 36.984³ =
  37. 37.1012³ =
  38. 38.103³ =
  39. 39.95³ =
  40. 40.992³ =

Answer key

  1. 979146657
  2. 1157625
  3. 1157625
  4. 973242271
  5. 1295029
  6. 1051871913
  7. 1054977832
  8. 1225043
  9. 970299000
  10. 958585256
  11. 1061208000
  12. 1027243729
  13. 955671625
  14. 1061208
  15. 1295029
  16. 988047936
  17. 970299
  18. 1191016
  19. 912673
  20. 973242271
  21. 1124864
  22. 976191488
  23. 1061208
  24. 1015075125
  25. 1051871913
  26. 857375
  27. 1024192512
  28. 884736
  29. 753571
  30. 830584
  31. 941192
  32. 1024192512
  33. 857375
  34. 1051871913
  35. 857375
  36. 952763904
  37. 1036433728
  38. 1092727
  39. 857375
  40. 976191488

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