一、完成算式 1.在下面的括号中填上一个相同的数使等式成立. ( )+( )-( )×( )÷( )=18 2.巧填括号,使等式成立. 90-30÷3×5=100二、∠1是多少度?三、把
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![一、完成算式 1.在下面的括号中填上一个相同的数使等式成立. ( )+( )-( )×( )÷( )=18 2.巧填括号,使等式成立. 90-30÷3×5=100二、∠1是多少度?三、把](/uploads/image/z/1689993-9-3.jpg?t=%E4%B8%80%E3%80%81%E5%AE%8C%E6%88%90%E7%AE%97%E5%BC%8F+++++1.%E5%9C%A8%E4%B8%8B%E9%9D%A2%E7%9A%84%E6%8B%AC%E5%8F%B7%E4%B8%AD%E5%A1%AB%E4%B8%8A%E4%B8%80%E4%B8%AA%E7%9B%B8%E5%90%8C%E7%9A%84%E6%95%B0%E4%BD%BF%E7%AD%89%E5%BC%8F%E6%88%90%E7%AB%8B.+++++++++++%28++++++++%29%2B%28++++++++%29-%28++++++++%29%C3%97%28+++++++%29%C3%B7%28++++++%29%3D18++++++2.%E5%B7%A7%E5%A1%AB%E6%8B%AC%E5%8F%B7%2C%E4%BD%BF%E7%AD%89%E5%BC%8F%E6%88%90%E7%AB%8B.+++++++++++90-30%C3%B73%C3%975%3D100%E4%BA%8C%E3%80%81%E2%88%A01%E6%98%AF%E5%A4%9A%E5%B0%91%E5%BA%A6%3F%E4%B8%89%E3%80%81%E6%8A%8A)
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