668-235-(565-342)可以巧算吗
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668-235-(565-342)可以巧算吗
668-235-(565-342)可以巧算吗
668-235-(565-342)可以巧算吗
668-235-(565-342)
=668+342-(235+565)
=1010-800
=210
668-235-(565-342)
=668+342-(235+565)
=1010-800
=210
可以:668-235-(565-342)=668+324-(235+565)=200
668-235-(565-342)
=668-235-565+342
=668+342-(235+565)
=1010-800
=210