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March 29, 2017

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21. 25+18+(-23)= 20

22. -65+(-2)+9= -58

23. 80+15+(-26)= 69

24. -5+4+(-27)= 18

25. -29+12+44= 27

30. 30+(-9)+1= 22

32. 51+ (-21)+-12)= 18

  • math - ,

    24 is wrong.

    The others are right.

  • math - ,

    -28

  • math - ,

    Right.

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