计算:(1)(-4)-(+13)+(-5)-(-9)(2)24×(18?13+14)(3)-32×(-2)+42÷(-2)3(4)4(x2-5
计算:(1)(-4)-(+13)+(-5)-(-9)(2)24×(18?13+14)(3)-32×(-2)+42÷(-2)3(4)4(x2-5x)-5(2x2+3x)(5...
计算:(1)(-4)-(+13)+(-5)-(-9)(2)24×(18?13+14)(3)-32×(-2)+42÷(-2)3(4)4(x2-5x)-5(2x2+3x)(5)|-79|÷(23?15)-13×(-4)2.
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