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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 72 · 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. 1.99³ =
  2. 2.1001³ =
  3. 3.992³ =
  4. 4.97³ =
  5. 5.95³ =
  6. 6.992³ =
  7. 7.983³ =
  8. 8.993³ =
  9. 9.92³ =
  10. 10.109³ =
  11. 11.993³ =
  12. 12.995³ =
  13. 13.99³ =
  14. 14.104³ =
  15. 15.997³ =
  16. 16.98³ =
  17. 17.91³ =
  18. 18.1010³ =
  19. 19.1011³ =
  20. 20.95³ =
  21. 21.103³ =
  22. 22.97³ =
  23. 23.1005³ =
  24. 24.108³ =
  25. 25.105³ =
  26. 26.1007³ =
  27. 27.983³ =
  28. 28.1001³ =
  29. 29.108³ =
  30. 30.98³ =
  31. 31.109³ =
  32. 32.1010³ =
  33. 33.109³ =
  34. 34.99³ =
  35. 35.1001³ =
  36. 36.1012³ =
  37. 37.91³ =
  38. 38.92³ =
  39. 39.97³ =
  40. 40.991³ =

Answer key

  1. 970299
  2. 1003003001
  3. 976191488
  4. 912673
  5. 857375
  6. 976191488
  7. 949862087
  8. 979146657
  9. 778688
  10. 1295029
  11. 979146657
  12. 985074875
  13. 970299
  14. 1124864
  15. 991026973
  16. 941192
  17. 753571
  18. 1030301000
  19. 1033364331
  20. 857375
  21. 1092727
  22. 912673
  23. 1015075125
  24. 1259712
  25. 1157625
  26. 1021147343
  27. 949862087
  28. 1003003001
  29. 1259712
  30. 941192
  31. 1295029
  32. 1030301000
  33. 1295029
  34. 970299
  35. 1003003001
  36. 1036433728
  37. 753571
  38. 778688
  39. 912673
  40. 973242271

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