2021年绝对值计算化简专项练习30题(有答案)OK.pdf
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1、学习资料收集于网络,仅供学习和参考,如有侵权,请联系网站删除学习资料绝对值计算化简专项练习30 题(有答案)1已知 a、b、c 在数轴上的位置如图所示,化简:|2a|a+c|1 b|+|ab|2有理数a,b,c 在数轴上的对应位置如图,化简:|a b|+|b c|+|a c|3已知 xy0,xy 且|x|=1,|y|=2(1)求 x 和 y 的值;(2)求的值4计算:|5|+|10|2|5当 x0 时,求的值6若 abc0,|a+b|=a+b,|a|c,求代数式的值精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页,共 11 页学习资料收集于网络,仅供学习和参考,如有侵权
2、,请联系网站删除学习资料7若|3a+5|=|2a+10|,求 a 的值8已知|mn|=n m,且|m|=4,|n|=3,求(m+n)2的值9a、b 在数轴上的位置如图所示,化简:|a|+|ab|a+b|10有理数 a,b,c 在数轴上的位置如图所示,试化简下式:|a c|a b|b c|+|2a|11若|x|=3,|y|=2,且 xy,求 xy 的值12化简:|3x+1|+|2x1|13已知:有理数a、b 在数轴上对应的点如图,化简|a|+|a+b|1 a|b+1|精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页,共 11 页文档编码:CO9J1B5D4S8 HE9C9
3、I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A
4、10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO
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6、C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O
7、8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:
8、CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 H
9、E9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1学习资料收集于网络,仅供学习和参考,如有侵权,请联系网站删除学习资料14+=1,求()2003()的值15(1)|x+1|+|x2|+|x 3|的最小值?(2)|x+1|+|x2|+|x 3|+|x 1|的最小值?(3)|x 2|+|x 4|+|x 6|+|x 20|的最小值?16计算:|+|+|+|17若
10、 a、b、c 均为整数,且|a b|3+|c a|2=1,求|a c|+|c b|+|b a|的值18已知 a、b、c 三个数在数轴上对应点如图,其中O为原点,化简|b a|2a b|+|a c|c|精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页,共 11 页文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8
11、A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:C
12、O9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE
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14、O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码
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17、F4O8A10H1W1学习资料收集于网络,仅供学习和参考,如有侵权,请联系网站删除学习资料19试求|x 1|+|x 3|+|x 2003|+|x 2005|的最小值20计算:21计算:(1)2.7+|2.7|2.7|(2)|16|+|+36|1|22计算(1)|5|+|10|9|;(2)|3|6|7|+2|23计算(1);(2)24若 x0,y0,求:|y|+|xy+2|y x3|的值精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页,共 11 页文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9
18、I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A
19、10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO
20、9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9
21、C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O
22、8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:
23、CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 H
24、E9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1学习资料收集于网络,仅供学习和参考,如有侵权,请联系网站删除学习资料25认真思考,求下列式子的值26问当 x 取何值时,|x 1|+|x 2|+|x 3|+|x 2011|取得最小值,并求出最小值27(1)当 x 在何范围时,|x 1|x 2|有最大值,并求出最大值(2)当 x 在何范围时,|x 1|x 2|+|x 3|x 4|有最大值,并求出它的最大值(3)代数式|x 1|x 2|+|
25、x 3|x 4|+|x 99|x 100|最大值是_(直接写出结果)28阅读:一个非负数的绝对值等于它本身,负数的绝对值等于它的相反数,所以,当a0 时|a|=a,根据以上阅读完成下列各题:(1)|3.14|=_;(2)计算=_;(3)猜想:=_,并证明你的猜想精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页,共 11 页文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编码:CO9J1B5D4S8 HE9C9I9D3O8 ZF4O8A10H1W1文档编
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