(240%+3又3/5)*(22又1/2+27.5)如何简算

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(240%+3又3/5)*(22又1/2+27.5)如何简算
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(240%+3又3/5)*(22又1/2+27.5)如何简算
(240%+3又3/5)*(22又1/2+27.5)如何简算

(240%+3又3/5)*(22又1/2+27.5)如何简算
=(2.4+3.6)*(22.5+27.5)
=6*50
=300