23.9-5.6+2.1-4.4的简便方法?

2025-03-01 19:47:13
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回答1:

23.9-5.6+2.1-4.4简便计算?
加法结合律计算。
23.9-5.6+2.1-4.4
=(23.9+2.1)-(5.6+4.4)
=26-10
=16