205+576=?,275+555=?,484+621=?
738-27=?,809-248=?,808-390=?
74+?=833,260+?=808,342+?=983
74*9=?,57*7=?,128*5=?
84/4=?,84/7=?,184/8=?
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?-283=777-464,171+269+384+141=?
887-200=?+366,376+233+298-606=?
206+?+322=934,419+211-196-309=?
268+?-454=385,999-318-108-376=?
写工整汉字