402+346=?,235+456=?,933+748=?
718-70=?,905-676=?,1590-785=?
78+?=824,233+?=1188,1282+?=1611
75*7=?,9*262=?,854*5=?
186/3=?,768/8=?,1746/6=?
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?-241=847-462,105+127+459+339=?
768-207=?+393,527+428+425-1237=?
253+?+308=910,1024+567-443-986=?
207+?-592=573,2103-632-724-434=?
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