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39+44-27= 90-36-25= 26+34+19=
45-5=
6+30=
32+6=
29-7=
50+25=
10+59=
42-20=
47-9=
30+23=
50+5=
31+(40-8)=
36-(18+2)=
40-20+17=
65+23-20=
70-28-31=
86-(13+24)=
96-(26+30)=
进入组卷