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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 900 · 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. 1.1008³ =
  2. 2.981³ =
  3. 3.995³ =
  4. 4.995³ =
  5. 5.987³ =
  6. 6.1017³ =
  7. 7.97³ =
  8. 8.95³ =
  9. 9.108³ =
  10. 10.108³ =
  11. 11.994³ =
  12. 12.105³ =
  13. 13.109³ =
  14. 14.92³ =
  15. 15.96³ =
  16. 16.105³ =
  17. 17.94³ =
  18. 18.992³ =
  19. 19.993³ =
  20. 20.108³ =
  21. 21.109³ =
  22. 22.102³ =
  23. 23.988³ =
  24. 24.98³ =
  25. 25.987³ =
  26. 26.91³ =
  27. 27.1009³ =
  28. 28.984³ =
  29. 29.101³ =
  30. 30.102³ =
  31. 31.97³ =
  32. 32.95³ =
  33. 33.96³ =
  34. 34.104³ =
  35. 35.99³ =
  36. 36.96³ =
  37. 37.109³ =
  38. 38.108³ =
  39. 39.985³ =
  40. 40.1001³ =

Answer key

  1. 1024192512
  2. 944076141
  3. 985074875
  4. 985074875
  5. 961504803
  6. 1051871913
  7. 912673
  8. 857375
  9. 1259712
  10. 1259712
  11. 982107784
  12. 1157625
  13. 1295029
  14. 778688
  15. 884736
  16. 1157625
  17. 830584
  18. 976191488
  19. 979146657
  20. 1259712
  21. 1295029
  22. 1061208
  23. 964430272
  24. 941192
  25. 961504803
  26. 753571
  27. 1027243729
  28. 952763904
  29. 1030301
  30. 1061208
  31. 912673
  32. 857375
  33. 884736
  34. 1124864
  35. 970299
  36. 884736
  37. 1295029
  38. 1259712
  39. 955671625
  40. 1003003001

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