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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 212 · 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. 1.987³ =
  2. 2.1015³ =
  3. 3.981³ =
  4. 4.97³ =
  5. 5.102³ =
  6. 6.994³ =
  7. 7.1018³ =
  8. 8.99³ =
  9. 9.93³ =
  10. 10.102³ =
  11. 11.1001³ =
  12. 12.98³ =
  13. 13.1014³ =
  14. 14.98³ =
  15. 15.991³ =
  16. 16.990³ =
  17. 17.101³ =
  18. 18.98³ =
  19. 19.97³ =
  20. 20.91³ =
  21. 21.996³ =
  22. 22.102³ =
  23. 23.107³ =
  24. 24.103³ =
  25. 25.1002³ =
  26. 26.995³ =
  27. 27.992³ =
  28. 28.1010³ =
  29. 29.1018³ =
  30. 30.987³ =
  31. 31.102³ =
  32. 32.94³ =
  33. 33.1017³ =
  34. 34.91³ =
  35. 35.96³ =
  36. 36.105³ =
  37. 37.92³ =
  38. 38.99³ =
  39. 39.994³ =
  40. 40.980³ =

Answer key

  1. 961504803
  2. 1045678375
  3. 944076141
  4. 912673
  5. 1061208
  6. 982107784
  7. 1054977832
  8. 970299
  9. 804357
  10. 1061208
  11. 1003003001
  12. 941192
  13. 1042590744
  14. 941192
  15. 973242271
  16. 970299000
  17. 1030301
  18. 941192
  19. 912673
  20. 753571
  21. 988047936
  22. 1061208
  23. 1225043
  24. 1092727
  25. 1006012008
  26. 985074875
  27. 976191488
  28. 1030301000
  29. 1054977832
  30. 961504803
  31. 1061208
  32. 830584
  33. 1051871913
  34. 753571
  35. 884736
  36. 1157625
  37. 778688
  38. 970299
  39. 982107784
  40. 941192000

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