[文字サイズの変更]
▼
▲
©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)
108
(2)
500
(3)
300
(4)
112
(5)
252
(6)
500
(7)
343
(8)
180
(9)
12
(10)
72
(11)
147
(12)
45
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
108
2
6
×
3
3
=
=
6
(2)
500
2
10
×
5
5
=
=
10
(3)
300
2
10
×
3
3
=
=
10
(4)
112
2
4
×
7
7
=
=
4
(5)
252
2
6
×
7
7
=
=
6
(6)
500
2
10
×
5
5
=
=
10
(7)
343
2
7
×
7
7
=
=
7
(8)
180
2
6
×
5
5
=
=
6
(9)
12
2
2
×
3
3
=
=
2
(10)
72
2
6
×
2
2
=
=
6
(11)
147
2
7
×
3
3
=
=
7
(12)
45
2
3
×
5
5
=
=
3
(1)
3
6
(2)
5
10
(3)
3
10
(4)
7
4
(5)
7
6
(6)
5
10
(7)
7
7
(8)
5
6
(9)
3
2
(10)
2
6
(11)
3
7
(12)
5
3