计算：﹣0.52+14﹣|﹣22﹣4|﹣-1123×49．_刷题宝

题干

计算：﹣0.5²+

1

4

﹣|﹣2²﹣4|﹣-1

1

2

3×

4

9

．

上一题下一题 0.0难度选择题更新时间:2017-05-08 01:47:04

答案(点此获取答案解析）

解：原式=﹣

1

4

+

1

4

﹣8+

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