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Cubes Near 100 Worksheet

Vedic maths trick 27: Cubes near 100 and 1000 · Set 52 · 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. 1.980³ =
  2. 2.991³ =
  3. 3.96³ =
  4. 4.92³ =
  5. 5.95³ =
  6. 6.1007³ =
  7. 7.993³ =
  8. 8.1014³ =
  9. 9.997³ =
  10. 10.92³ =
  11. 11.101³ =
  12. 12.103³ =
  13. 13.107³ =
  14. 14.997³ =
  15. 15.1020³ =
  16. 16.108³ =
  17. 17.107³ =
  18. 18.94³ =
  19. 19.995³ =
  20. 20.91³ =
  21. 21.981³ =
  22. 22.96³ =
  23. 23.1005³ =
  24. 24.99³ =
  25. 25.1011³ =
  26. 26.989³ =
  27. 27.1006³ =
  28. 28.1004³ =
  29. 29.1013³ =
  30. 30.989³ =
  31. 31.95³ =
  32. 32.982³ =
  33. 33.1014³ =
  34. 34.986³ =
  35. 35.95³ =
  36. 36.1006³ =
  37. 37.91³ =
  38. 38.997³ =
  39. 39.95³ =
  40. 40.1017³ =

Answer key

  1. 941192000
  2. 973242271
  3. 884736
  4. 778688
  5. 857375
  6. 1021147343
  7. 979146657
  8. 1042590744
  9. 991026973
  10. 778688
  11. 1030301
  12. 1092727
  13. 1225043
  14. 991026973
  15. 1061208000
  16. 1259712
  17. 1225043
  18. 830584
  19. 985074875
  20. 753571
  21. 944076141
  22. 884736
  23. 1015075125
  24. 970299
  25. 1033364331
  26. 967361669
  27. 1018108216
  28. 1012048064
  29. 1039509197
  30. 967361669
  31. 857375
  32. 946966168
  33. 1042590744
  34. 958585256
  35. 857375
  36. 1018108216
  37. 753571
  38. 991026973
  39. 857375
  40. 1051871913

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