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一、口算11-714+612-540+509+890-206+846-713+4052-227+83+3854-750-649-4026+532+723-66+5070-2561+9-3032+(11-3)57-(35+20)46-(12+8)二、填空(
First, the port count 11-714 + 612-540 +509 +890-206 +846-713 +4052-227 +83 +3854-750-649-4026 +532 +723-66 +5070-2561 +9-3032 + (11-3) 57- (35 +20) 46- (12 +8) Second, fill in the blank