-6.3+(-2.3)-(-5)怎么解答啊?

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-6.3+(-2.3)-(-5)怎么解答啊?
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-6.3+(-2.3)-(-5)怎么解答啊?
-6.3+(-2.3)-(-5)怎么解答啊?

-6.3+(-2.3)-(-5)怎么解答啊?
-6.3+(-2.3)-(-5)
= -6.3-2.3+5
= -8.6+5
= -3.6

-6.3+(-2.3)-(-5)
=-6.3-2.3+5
=-(6.3+2.3)+5
=-8.6+5
=-(8.6-5)
=-3.6