6.1-(4.3-2.9)的简便计算方法?
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6.1-(4.3-2.9)=6.1-4.3+2.9
=6.1+2.9-4.3
=9-4.3
=4.7
=6.1+2.9-4.3
=9-4.3
=4.7
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6.1-(4.3-2.9)
=6.1-4.3+2.9
=6.1+2.9-4.3
=9-4.3
=4.7
=6.1-4.3+2.9
=6.1+2.9-4.3
=9-4.3
=4.7
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展开全部
6.1-(4.3-2.9)
=6.1-4.3+2.9
=6.1+2.9-4.3
=9-4.3
=4.7
=6.1-4.3+2.9
=6.1+2.9-4.3
=9-4.3
=4.7
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6.1一(4.3一2.9)
=6.1一4.3十2.9
=6.1十2.9一4.3
=9一4.3
=4.7
=6.1一4.3十2.9
=6.1十2.9一4.3
=9一4.3
=4.7
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=(6.1+2.9)-4.3
=9-4.3
=4.7
=9-4.3
=4.7
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