简便计算25.9-3.61-2.29-2.1
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简便计算25.9-3.61-2.29-2.1
简便计算25.9-3.61-2.29-2.1
简便计算25.9-3.61-2.29-2.1
25.9-3.61-2.29-2.1
=(25.9-2.1)-(3.61+2.29)
=23.8-5.9
=17.9
17.9
简便计算25.9-3.61-2.29-2.1
简便计算25.9-3.61-2.29-2.1
简便计算25.9-3.61-2.29-2.1
25.9-3.61-2.29-2.1
=(25.9-2.1)-(3.61+2.29)
=23.8-5.9
=17.9
17.9