7.39-5.48+2.61-2.51简便计算

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7.39-5.48+2.61-2.51简便计算7.39-5.48+2.61-2.51简便计算7.39-5.48+2.61-2.51简便计算7.39-5.48+2.61-2.51=(7.39+2.61)

7.39-5.48+2.61-2.51简便计算
7.39-5.48+2.61-2.51简便计算

7.39-5.48+2.61-2.51简便计算
7.39-5.48+2.61-2.51
=(7.39+2.61)-(5.48+2.51)
=10-7.99
=2.01

7.39-5.48+2.61-2.51=(7.39+2.61)-(5.48+2.51)=10-7.99=2.01