
2个回答
展开全部
5.67×3.5-11.8
=(6-0.33)*3.5-11.8
=6*3.5-0.33*3.5-11.8
=21-0.3*3.5-0.03*3.5-11.8
=21-1.05-0.105-11.8
=10-0.8-1.05-0.105
=8.2-0.05-0.105
=8.2-0.155
=8.045
=(6-0.33)*3.5-11.8
=6*3.5-0.33*3.5-11.8
=21-0.3*3.5-0.03*3.5-11.8
=21-1.05-0.105-11.8
=10-0.8-1.05-0.105
=8.2-0.05-0.105
=8.2-0.155
=8.045
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