[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)
48
(2)
245
(3)
12
(4)
320
(5)
112
(6)
108
(7)
245
(8)
98
(9)
448
(10)
320
(11)
567
(12)
12
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
48
2
4
×
3
3
=
=
4
(2)
245
2
7
×
5
5
=
=
7
(3)
12
2
2
×
3
3
=
=
2
(4)
320
2
8
×
5
5
=
=
8
(5)
112
2
4
×
7
7
=
=
4
(6)
108
2
6
×
3
3
=
=
6
(7)
245
2
7
×
5
5
=
=
7
(8)
98
2
7
×
2
2
=
=
7
(9)
448
2
8
×
7
7
=
=
8
(10)
320
2
8
×
5
5
=
=
8
(11)
567
2
9
×
7
7
=
=
9
(12)
12
2
2
×
3
3
=
=
2
(1)
3
4
(2)
5
7
(3)
3
2
(4)
5
8
(5)
7
4
(6)
3
6
(7)
5
7
(8)
2
7
(9)
7
8
(10)
5
8
(11)
7
9
(12)
3
2