怎样算简便就怎样算．
6.71×0.52+4.8×0.671 2.5×（3.5﹣1.65）×0.4 102×4.5
6.25÷1.25÷0.8 8.3﹣2.63+2.73×1.5．
怎样算简便就怎样算．
6.71×0.52+4.8×0.671 2.5×（3.5﹣1.65）×0.4 102×4.5
6.25÷1.25÷0.8 8.3﹣2.63+2.73×1.5．
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