展开全部
(-2/3)+0-|5+1/6|+|-(4+5/6)|+(9+1/3)
=-2/3-5-1/6+4+5/6+9+1/3
=(9+4-5)+(-2/3-1/6+5/6+1/3)
=8+(-2/3+4/6+1/3)
=8+(-2/3+2/3+1/3)
=8+1/3
=8又1/3
=-2/3-5-1/6+4+5/6+9+1/3
=(9+4-5)+(-2/3-1/6+5/6+1/3)
=8+(-2/3+4/6+1/3)
=8+(-2/3+2/3+1/3)
=8+1/3
=8又1/3
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