50.6-7.8*5.6怎么简算

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50.6-7.8*5.6怎么简算50.6-7.8*5.6怎么简算50.6-7.8*5.6怎么简算50.6-7.8*5.6=50.6-(8-0.2)*5.6=50.6-8*5.6+0.2*5.6=50.

50.6-7.8*5.6怎么简算
50.6-7.8*5.6怎么简算

50.6-7.8*5.6怎么简算
50.6-7.8*5.6
=50.6-(8-0.2)*5.6
=50.6-8*5.6+0.2*5.6
=50.6-44.8+1.12
=50.8-44.8+1.12-0.2
=6+1.12-0.2
=7.12-0.2
=6.92

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