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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 707 · 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. 2.1005³ =
  3. 3.998³ =
  4. 4.98³ =
  5. 5.987³ =
  6. 6.98³ =
  7. 7.1016³ =
  8. 8.109³ =
  9. 9.1010³ =
  10. 10.93³ =
  11. 11.109³ =
  12. 12.99³ =
  13. 13.101³ =
  14. 14.986³ =
  15. 15.990³ =
  16. 16.97³ =
  17. 17.989³ =
  18. 18.92³ =
  19. 19.93³ =
  20. 20.1017³ =
  21. 21.99³ =
  22. 22.103³ =
  23. 23.981³ =
  24. 24.93³ =
  25. 25.97³ =
  26. 26.99³ =
  27. 27.95³ =
  28. 28.1007³ =
  29. 29.105³ =
  30. 30.102³ =
  31. 31.988³ =
  32. 32.994³ =
  33. 33.102³ =
  34. 34.99³ =
  35. 35.103³ =
  36. 36.98³ =
  37. 37.97³ =
  38. 38.93³ =
  39. 39.98³ =
  40. 40.982³ =

Answer key

  1. 1061208000
  2. 1015075125
  3. 994011992
  4. 941192
  5. 961504803
  6. 941192
  7. 1048772096
  8. 1295029
  9. 1030301000
  10. 804357
  11. 1295029
  12. 970299
  13. 1030301
  14. 958585256
  15. 970299000
  16. 912673
  17. 967361669
  18. 778688
  19. 804357
  20. 1051871913
  21. 970299
  22. 1092727
  23. 944076141
  24. 804357
  25. 912673
  26. 970299
  27. 857375
  28. 1021147343
  29. 1157625
  30. 1061208
  31. 964430272
  32. 982107784
  33. 1061208
  34. 970299
  35. 1092727
  36. 941192
  37. 912673
  38. 804357
  39. 941192
  40. 946966168

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