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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 978 · 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. 1.105³ =
  2. 2.101³ =
  3. 3.984³ =
  4. 4.1002³ =
  5. 5.1014³ =
  6. 6.96³ =
  7. 7.108³ =
  8. 8.108³ =
  9. 9.107³ =
  10. 10.91³ =
  11. 11.99³ =
  12. 12.104³ =
  13. 13.985³ =
  14. 14.101³ =
  15. 15.986³ =
  16. 16.985³ =
  17. 17.996³ =
  18. 18.1007³ =
  19. 19.95³ =
  20. 20.1001³ =
  21. 21.95³ =
  22. 22.1007³ =
  23. 23.1006³ =
  24. 24.1005³ =
  25. 25.106³ =
  26. 26.1003³ =
  27. 27.101³ =
  28. 28.101³ =
  29. 29.97³ =
  30. 30.103³ =
  31. 31.996³ =
  32. 32.99³ =
  33. 33.108³ =
  34. 34.992³ =
  35. 35.1007³ =
  36. 36.93³ =
  37. 37.108³ =
  38. 38.994³ =
  39. 39.103³ =
  40. 40.105³ =

Answer key

  1. 1157625
  2. 1030301
  3. 952763904
  4. 1006012008
  5. 1042590744
  6. 884736
  7. 1259712
  8. 1259712
  9. 1225043
  10. 753571
  11. 970299
  12. 1124864
  13. 955671625
  14. 1030301
  15. 958585256
  16. 955671625
  17. 988047936
  18. 1021147343
  19. 857375
  20. 1003003001
  21. 857375
  22. 1021147343
  23. 1018108216
  24. 1015075125
  25. 1191016
  26. 1009027027
  27. 1030301
  28. 1030301
  29. 912673
  30. 1092727
  31. 988047936
  32. 970299
  33. 1259712
  34. 976191488
  35. 1021147343
  36. 804357
  37. 1259712
  38. 982107784
  39. 1092727
  40. 1157625

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