内容正文:
2023-2024学年人教版八年级数学下册二次根式计算题专项训练
1.计算:
(1)
(2)
2.计算:
(1)
(2)
3.计算:
(1)
(2)
(3)
4.计算:
(1)
(2)
(3)
(4)
5.计算:
(1)
(2)
6.计算:
(1)2
(2)
7.计算:
(1) .
(2) .
(3).
(4).
8.计算:
(1) .
(2) .
(3) .
(4) .
(5) .
9.计算:
(1).
(2).
(3).
(4).
10.计算:
(1) .
(2) .
11. 计算:
(1)
(2)
(3)
12.计算:
(1)
(2)
13.计算:
(1)
(2)
14.计算:
(1).
(2).
(3).
答案解析部分
1.【答案】(1)解:;
(2)解:.
2.【答案】(1)132
(2)2
3.【答案】(1)3
(2)2
(3)+3
4.【答案】(1)
(2)
(3)
(4)
5.【答案】(1)
(2)
6.【答案】(1)
(2)
7.【答案】(1)4
(2)
(3)
(4)17
8.【答案】(1)
(2)
(3)
(4)
(5)
9.【答案】(1)6-6
(2)57+12
(3)
(4)
10.【答案】(1)1+
(2)2-1
11.【答案】(1)4
(2)
(3)
12.【答案】(1)解:
;
(2)解:
.
13.【答案】(1)
=
(2)
=
14.【答案】(1)原式=5-(3-1)+0.1
=5-2+0.1
=3.1
(2)原式=
=3
(3)
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