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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 949 · 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. 1.104³ =
  2. 2.94³ =
  3. 3.92³ =
  4. 4.1013³ =
  5. 5.108³ =
  6. 6.102³ =
  7. 7.91³ =
  8. 8.106³ =
  9. 9.107³ =
  10. 10.988³ =
  11. 11.102³ =
  12. 12.1010³ =
  13. 13.1015³ =
  14. 14.108³ =
  15. 15.1013³ =
  16. 16.1014³ =
  17. 17.101³ =
  18. 18.108³ =
  19. 19.996³ =
  20. 20.1005³ =
  21. 21.994³ =
  22. 22.104³ =
  23. 23.98³ =
  24. 24.109³ =
  25. 25.95³ =
  26. 26.105³ =
  27. 27.108³ =
  28. 28.1004³ =
  29. 29.94³ =
  30. 30.93³ =
  31. 31.103³ =
  32. 32.994³ =
  33. 33.105³ =
  34. 34.102³ =
  35. 35.91³ =
  36. 36.102³ =
  37. 37.103³ =
  38. 38.92³ =
  39. 39.988³ =
  40. 40.92³ =

Answer key

  1. 1124864
  2. 830584
  3. 778688
  4. 1039509197
  5. 1259712
  6. 1061208
  7. 753571
  8. 1191016
  9. 1225043
  10. 964430272
  11. 1061208
  12. 1030301000
  13. 1045678375
  14. 1259712
  15. 1039509197
  16. 1042590744
  17. 1030301
  18. 1259712
  19. 988047936
  20. 1015075125
  21. 982107784
  22. 1124864
  23. 941192
  24. 1295029
  25. 857375
  26. 1157625
  27. 1259712
  28. 1012048064
  29. 830584
  30. 804357
  31. 1092727
  32. 982107784
  33. 1157625
  34. 1061208
  35. 753571
  36. 1061208
  37. 1092727
  38. 778688
  39. 964430272
  40. 778688

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