38-9= 16+40= 13-8= 86-70-7=
49+6= 76-30= 86-5= 38+20+2=
47+3= 50+50= 72+5= 46-3+20=
50-6= 54-4= 7+55= 34+30-6=
100-40= ( )-7=25 ( )+8=64 44-( )=20
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