7.2÷1.6 0.8简便计算列竖式

Question

如题所述

Answer 1

7.2÷1.6+0.8
=7.2÷0.8÷2+0.8
=9÷2+0.8
=4.5+0.8
=5.3

Answer 2

7.2/1.6+0.8
=4.5+0.8
=5.3
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