118+306/17+265.如何进行简便计算.注意要简便的
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118+306/17+265.如何进行简便计算.注意要简便的
![118+306/17+265.如何进行简便计算.注意要简便的](/uploads/image/z/8570355-51-5.jpg?t=118%2B306%2F17%2B265.%E5%A6%82%E4%BD%95%E8%BF%9B%E8%A1%8C%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97.%E6%B3%A8%E6%84%8F%E8%A6%81%E7%AE%80%E4%BE%BF%E7%9A%84)
118+306/17+265
=118+18+265
=118+(2+15+1)+265
=(118+2)+(15+265)+1
=120+280+1
=400+1
=401
=118+18+265
=118+(2+15+1)+265
=(118+2)+(15+265)+1
=120+280+1
=400+1
=401