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Answer Key 9.3

  1. (2+2+2)5
    65
  2. −53−36
  3. −32+65
  4. −3−56
  5. 2−39⋅2
    2−3⋅32
    −82
  6. −6⋅9−36+39⋅3
    −36−36+3⋅33
    −66+93
  7. −36−4⋅3+33
    −36−23+33
    −36+3
  8. −25−26⋅9
    −25−2⋅36
    −25−66
  9. 32+24⋅2−32⋅9
    32+2⋅22−3⋅32
    32+42−92
    −22
  10. 420−3
    44⋅5−3
    4⋅25−3
    85−3
  11. 39⋅2−42
    3⋅32−42
    92−42⇒52
  12. −39⋅3+23−4⋅3
    −3⋅33+23−23
    −93
  13. −36−3
  14. −32+34⋅2+36
    −32+3⋅22+36
    32+36
  15. −29⋅2−34⋅2−4⋅5+24⋅5
    −62−62−25+45
    −122+25
  16. −39⋅2+38
    −92+34⋅2
    −92+62
    −32
  17. −24⋅6+25⋅4
    −46+45
  18. −34⋅2−5−36+29⋅2
    −62−5−36+62
    −5−36
  19. 36⋅4−33⋅9+26+22⋅4
    66−93+26+42
    42−93+86
  20. 26−9⋅6−39⋅3−3
    26−36−93−3
    −6−103

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