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数学
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计算:-16+23+(-17)-(-7)
人气:411 ℃ 时间:2020-05-27 19:23:47
解答
原式=-16+23-17+7
=-33+30
=-3.
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-17+23+(-16)-(-7)=?
计算:23-17-(-7)+(-16)=
计算下列各题: (1)23-17-(-7)+(-16) (2)(−81)÷9/4×4/9÷(−16) (3)(−11/4+5/8−7/12)×(−24) (4)−14−(1−0.5)×1/3×[2−(−3)2] (5)3x2+2xy-4y2
计算:-16+23+(-17)-(-7)
23+(-16)-(-7)-17计算过程
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