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26.8-320%-6.8-680%5.2(60%+2.4÷0.6)3.7×125%+126.8-320%-6.8-680%5.2(60%+2.4÷0.6)3.7×125%+12.5×0.27+3.6×125%

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26.8-320%-6.8-680% 5.2(60%+2.4÷0.6) 3.7×125%+1
26.8-320%-6.8-680%
5.2(60%+2.4÷0.6)
3.7×125%+12.5×0.27+3.6×125%
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