11.66-6.29-2.71+4.34的简便方法快

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11.66-6.29-2.71+4.34的简便方法快11.66-6.29-2.71+4.34的简便方法快11.66-6.29-2.71+4.34的简便方法快11.66-6.29-2.71+4.34=(

11.66-6.29-2.71+4.34的简便方法快
11.66-6.29-2.71+4.34的简便方法

11.66-6.29-2.71+4.34的简便方法快
11.66-6.29-2.71+4.34
=(11.66+4.34)-(6.29+2.71)
=16-9
=7