(2011浙江衢州,17,4分)计算:.
(2011 浙江湖州,17,6)计算:
(2011山东济宁,16,5分)计算:
(2011山东菏泽,15(1),6分)计算:
. (2011山东滨州,19,6分)计算:
(2011江苏扬州,19,4分)