吉林省吉林市八年级数学下册第十六章二次根式的混合运算同步测试(无答案)(新版)新人教版.doc

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1、1二次根式的混合运算1、 计算: 2、 计算(1)(-2) 3+ (2004- )-|- |(2)(3)-3 2003( ) 2002+(4)(- ) 567 ( ) 6(5)(6) 3、 计算: 4、 计算: 5、 计算: 6、 计算:=_, =_, =_,按照以上的规律,写出接下来的一个式子,并计算7、 (1)计算: (2)计算: (3) (4)(5)(6)(7) ; (8) (结 果用幂的形式表示)8、 计算: 29、 计算: 10、 计算:( -2) 2+ 11、 下列计算中正确的是( )ABCD12、 化简 13、 (1)计算: ; (2)化简: 14、 计算下列各式:(1) +2

2、 ;(2) ( ) ( )+(3 ) 2;(3) 15、 ( 1)计算: (2 +4 -3 ) ;x 取何值, 有意义(2)解方程:( x-5) (x+7)=4;x 2+3x-4=0(用配方法)16、 计算:(1) ;(2) ( - ) 17、 计算(1) ;(2) 18、 ( ) 2+ 19、 化简下 列各题(1) ;(2) ;3(3) 20、 计算:(1) ;(2) (x0,y0) ;(3) 21、 计算或化简:(1)(2)(3)22、 计算:= ; = ; = ; = 23、 计算(1)(2) 24、 计算或化简:( 1)(2)(3) 25、 计算:(1)(2) 26、 化简(1 )5 + -6 ;(2) 27、 下列计算正确的是( )AB4CD

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