6.345×2.54+6点45×6.345+6点35的脱式计算怎么算？
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6.345×2.54+6.45×6.345+6.35
=6.345×（2.54+6.45+1)-0.005
=6.345×9.99-0.005
=6.345×1-6.345×0.01-0.005
=6.345-0.06845
=6.345-0.1+0.03155
=6.27655
=6.345×（2.54+6.45+1)-0.005
=6.345×9.99-0.005
=6.345×1-6.345×0.01-0.005
=6.345-0.06845
=6.345-0.1+0.03155
=6.27655
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