[文字サイズの変更]
▼
▲
©2025 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)
405
(3)
700
(4)
500
(5)
75
(6)
700
(7)
700
(8)
162
(9)
128
(10)
700
(11)
8
(12)
50
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
180
2
6
×
5
5
=
=
6
(2)
405
2
9
×
5
5
=
=
9
(3)
700
2
10
×
7
7
=
=
10
(4)
500
2
10
×
5
5
=
=
10
(5)
75
2
5
×
3
3
=
=
5
(6)
700
2
10
×
7
7
=
=
10
(7)
700
2
10
×
7
7
=
=
10
(8)
162
2
9
×
2
2
=
=
9
(9)
128
2
8
×
2
2
=
=
8
(10)
700
2
10
×
7
7
=
=
10
(11)
8
2
2
×
2
2
=
=
2
(12)
50
2
5
×
2
2
=
=
5
(1)
5
6
(2)
5
9
(3)
7
10
(4)
5
10
(5)
3
5
(6)
7
10
(7)
7
10
(8)
2
9
(9)
2
8
(10)
7
10
(11)
2
2
(12)
2
5