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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 614 · 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. 1.1020³ =
  2. 2.103³ =
  3. 3.98³ =
  4. 4.99³ =
  5. 5.995³ =
  6. 6.105³ =
  7. 7.106³ =
  8. 8.95³ =
  9. 9.98³ =
  10. 10.106³ =
  11. 11.986³ =
  12. 12.103³ =
  13. 13.107³ =
  14. 14.1010³ =
  15. 15.109³ =
  16. 16.988³ =
  17. 17.1015³ =
  18. 18.994³ =
  19. 19.989³ =
  20. 20.103³ =
  21. 21.1005³ =
  22. 22.93³ =
  23. 23.102³ =
  24. 24.99³ =
  25. 25.103³ =
  26. 26.999³ =
  27. 27.109³ =
  28. 28.994³ =
  29. 29.97³ =
  30. 30.92³ =
  31. 31.109³ =
  32. 32.101³ =
  33. 33.996³ =
  34. 34.997³ =
  35. 35.1008³ =
  36. 36.98³ =
  37. 37.91³ =
  38. 38.91³ =
  39. 39.91³ =
  40. 40.1007³ =

Answer key

  1. 1061208000
  2. 1092727
  3. 941192
  4. 970299
  5. 985074875
  6. 1157625
  7. 1191016
  8. 857375
  9. 941192
  10. 1191016
  11. 958585256
  12. 1092727
  13. 1225043
  14. 1030301000
  15. 1295029
  16. 964430272
  17. 1045678375
  18. 982107784
  19. 967361669
  20. 1092727
  21. 1015075125
  22. 804357
  23. 1061208
  24. 970299
  25. 1092727
  26. 997002999
  27. 1295029
  28. 982107784
  29. 912673
  30. 778688
  31. 1295029
  32. 1030301
  33. 988047936
  34. 991026973
  35. 1024192512
  36. 941192
  37. 753571
  38. 753571
  39. 753571
  40. 1021147343

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