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(0.35+0.65)÷0.2+0.8=1÷0.2+0.8=5.7.________.

错误.
分析:要想知道此题结果是否正确,应通过计算加以判断.先算括号内的,再算括号外的除法,最后算括号外的加法.此题运算顺序正确,结果错误.
解答:(0.35+0.65)÷0.2+0.8,
=1÷0.2+0.8,
=5+0.8,
=5.8;
故答案为:错误.
点评:解答四则混合运算的题目,关键掌握运算顺序.还要注意细心,不要出现“笔下误”等毛病.
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