3.61-2.83+4.39-0.17简便计算

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3.61-2.83+4.39-0.17简便计算
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3.61-2.83+4.39-0.17简便计算
3.61-2.83+4.39-0.17简便计算

3.61-2.83+4.39-0.17简便计算
3.61-2.83+4.39-0.17
=3.61+4.39-(2.83+0.17)
=8-3
=5

(3.61+4.39)-(2.83+0.17)
=8-3
=5

(3.61+4.39)-(2.83+0.17)