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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 721 · 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. 1.982³ =
  2. 2.989³ =
  3. 3.103³ =
  4. 4.106³ =
  5. 5.1015³ =
  6. 6.108³ =
  7. 7.108³ =
  8. 8.1020³ =
  9. 9.994³ =
  10. 10.988³ =
  11. 11.1012³ =
  12. 12.95³ =
  13. 13.106³ =
  14. 14.102³ =
  15. 15.990³ =
  16. 16.102³ =
  17. 17.102³ =
  18. 18.998³ =
  19. 19.1008³ =
  20. 20.994³ =
  21. 21.99³ =
  22. 22.94³ =
  23. 23.980³ =
  24. 24.95³ =
  25. 25.107³ =
  26. 26.1018³ =
  27. 27.984³ =
  28. 28.1005³ =
  29. 29.999³ =
  30. 30.96³ =
  31. 31.1009³ =
  32. 32.992³ =
  33. 33.102³ =
  34. 34.998³ =
  35. 35.91³ =
  36. 36.109³ =
  37. 37.109³ =
  38. 38.995³ =
  39. 39.95³ =
  40. 40.995³ =

Answer key

  1. 946966168
  2. 967361669
  3. 1092727
  4. 1191016
  5. 1045678375
  6. 1259712
  7. 1259712
  8. 1061208000
  9. 982107784
  10. 964430272
  11. 1036433728
  12. 857375
  13. 1191016
  14. 1061208
  15. 970299000
  16. 1061208
  17. 1061208
  18. 994011992
  19. 1024192512
  20. 982107784
  21. 970299
  22. 830584
  23. 941192000
  24. 857375
  25. 1225043
  26. 1054977832
  27. 952763904
  28. 1015075125
  29. 997002999
  30. 884736
  31. 1027243729
  32. 976191488
  33. 1061208
  34. 994011992
  35. 753571
  36. 1295029
  37. 1295029
  38. 985074875
  39. 857375
  40. 985074875

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