9.207-22.78/3.4简便计算

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9.207-22.78/3.4简便计算9.207-22.78/3.4简便计算9.207-22.78/3.4简便计算9.207-22.78/3.4=9.207-(23.8-1.02)/3.4=9.207

9.207-22.78/3.4简便计算
9.207-22.78/3.4简便计算

9.207-22.78/3.4简便计算
9.207-22.78/3.4
=9.207-(23.8-1.02)/3.4
=9.207-23.8/3.4+1.02/3.4
=9.207-7+0.3
=2.507