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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 205 · 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. 1.980³ =
  2. 2.1003³ =
  3. 3.999³ =
  4. 4.92³ =
  5. 5.1006³ =
  6. 6.91³ =
  7. 7.980³ =
  8. 8.992³ =
  9. 9.1009³ =
  10. 10.98³ =
  11. 11.999³ =
  12. 12.99³ =
  13. 13.108³ =
  14. 14.109³ =
  15. 15.992³ =
  16. 16.998³ =
  17. 17.106³ =
  18. 18.103³ =
  19. 19.1005³ =
  20. 20.1012³ =
  21. 21.108³ =
  22. 22.1015³ =
  23. 23.102³ =
  24. 24.106³ =
  25. 25.94³ =
  26. 26.98³ =
  27. 27.97³ =
  28. 28.109³ =
  29. 29.988³ =
  30. 30.103³ =
  31. 31.990³ =
  32. 32.94³ =
  33. 33.97³ =
  34. 34.994³ =
  35. 35.99³ =
  36. 36.108³ =
  37. 37.1006³ =
  38. 38.97³ =
  39. 39.1001³ =
  40. 40.104³ =

Answer key

  1. 941192000
  2. 1009027027
  3. 997002999
  4. 778688
  5. 1018108216
  6. 753571
  7. 941192000
  8. 976191488
  9. 1027243729
  10. 941192
  11. 997002999
  12. 970299
  13. 1259712
  14. 1295029
  15. 976191488
  16. 994011992
  17. 1191016
  18. 1092727
  19. 1015075125
  20. 1036433728
  21. 1259712
  22. 1045678375
  23. 1061208
  24. 1191016
  25. 830584
  26. 941192
  27. 912673
  28. 1295029
  29. 964430272
  30. 1092727
  31. 970299000
  32. 830584
  33. 912673
  34. 982107784
  35. 970299
  36. 1259712
  37. 1018108216
  38. 912673
  39. 1003003001
  40. 1124864

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