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0.7+0.3-0.7+0.3的结果是(  )
分析:在计算0.7+0.3-0.7+0.3时,可利用加法交换律与结合律简算,求出结果后,进行选择.
解答:解:0.7+0.3-0.7+0.3,
=(0.7-0.7)+(0.3+0.3),
=0+0.6,
=0.6.
故选:B.
点评:此题考查了加法交换律与结合律的运用.
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