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数学题在线解答(0.75×57.4-0.574×25+57.4)÷3

题目详情
数学题在线解答
(0.75×57.4-0.574×25+57.4)÷3
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答案和解析
(0.75×57.4-0.574×25+57.4)÷3
=(0.75×57.4-57.4×0.25+57.4)÷3
=57.4×(0.75-0.25+1)÷3
=57.4×(1.5÷3)
=57.4×0.5
=28.7