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27+38= 16+9= 83-35= 92-46=
12+18= 50+40= 18+7= 35-14=
38+16= 78-25= 89-44= 48+35=
①62-24=
②63+18=
③94-65=
④16+18+25=
⑤48-(30-16)=
⑥59-27+13=
17+89+13 3×8+195×8-16
38+4998-11 18+18-1818-18+18
37+16+837+17+7 5×4-55×4+5
83-2534+43 18+32+1832+(18-18)
2×9+5468+19-7
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