8.47-5.27+2.53-2.73用简便方法计算
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亲,这道题的结果等于3算式8.47-5.27+2.53-2.73=(8.47+2.53)-(5.27+2.73)=11-8=3
咨询记录 · 回答于2023-06-20
8.47-5.27+2.53-2.73用简便方法计算
亲,这道题的结果等于3算式8.47-5.27+2.53-2.73=(8.47+2.53)-(5.27+2.73)=11-8=3
这道题采用的简便方法是加法的结合律