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©2026 数学クラブ http://sugaku.club/
月 日( )
● √
の中をできるだけ簡単な数にしなさい
[1N3-00]
(1)
180
(2)
200
(3)
300
(4)
50
(5)
18
(6)
180
(7)
700
(8)
18
(9)
500
(10)
8
(11)
192
(12)
112
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
180
2
6
×
5
5
=
=
6
(2)
200
2
10
×
2
2
=
=
10
(3)
300
2
10
×
3
3
=
=
10
(4)
50
2
5
×
2
2
=
=
5
(5)
18
2
3
×
2
2
=
=
3
(6)
180
2
6
×
5
5
=
=
6
(7)
700
2
10
×
7
7
=
=
10
(8)
18
2
3
×
2
2
=
=
3
(9)
500
2
10
×
5
5
=
=
10
(10)
8
2
2
×
2
2
=
=
2
(11)
192
2
8
×
3
3
=
=
8
(12)
112
2
4
×
7
7
=
=
4
(1)
5
6
(2)
2
10
(3)
3
10
(4)
2
5
(5)
2
3
(6)
5
6
(7)
7
10
(8)
2
3
(9)
5
10
(10)
2
2
(11)
3
8
(12)
7
4