来自苟永明的问题
[（35.16×0.25+38.42÷2）×0.2-1.63-2.36]÷0.25．
[（35.16×0.25+38.42÷2）×0.2-1.63-2.36]÷0.25．
[（35.16×0.25+38.42÷2）×0.2-1.63-2.36]÷0.25
=[（8.79+19.21）×0.2-1.63-2.36]÷0.25
=[28×0.2-1.63-2.36]÷0.25
=[5.6-1.63-2.36]÷0.25
=1.61÷0.25
=6.44．
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