计算:(1)(-2)+(+5)-(+4)-(-3)-3(2)-5×(-6)+3×(-8)-(-4)×(-7)(3)(1?16+34)×(?
计算:(1)(-2)+(+5)-(+4)-(-3)-3(2)-5×(-6)+3×(-8)-(-4)×(-7)(3)(1?16+34)×(?48)(4)(-1)10×2+(...
计算:(1)(-2)+(+5)-(+4)-(-3)-3(2)-5×(-6)+3×(-8)-(-4)×(-7)(3)(1?16+34)×(?48)(4)(-1)10×2+(-2)3÷4.
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