7.8-(5.7-2.2)-4.3的简便计算

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7.8-(5.7-2.2)-4.3的简便计算
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7.8-(5.7-2.2)-4.3的简便计算
7.8-(5.7-2.2)-4.3的简便计算

7.8-(5.7-2.2)-4.3的简便计算

<7.8+2.2>-<5.7+4.3>=0

7.8-(5.7+4.3+2.2)

7.8-5.7+2.2-4.3
10-10
0