[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)
243
(2)
500
(3)
18
(4)
48
(5)
162
(6)
448
(7)
500
(8)
45
(9)
18
(10)
500
(11)
243
(12)
75
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
243
2
9
×
3
3
=
=
9
(2)
500
2
10
×
5
5
=
=
10
(3)
18
2
3
×
2
2
=
=
3
(4)
48
2
4
×
3
3
=
=
4
(5)
162
2
9
×
2
2
=
=
9
(6)
448
2
8
×
7
7
=
=
8
(7)
500
2
10
×
5
5
=
=
10
(8)
45
2
3
×
5
5
=
=
3
(9)
18
2
3
×
2
2
=
=
3
(10)
500
2
10
×
5
5
=
=
10
(11)
243
2
9
×
3
3
=
=
9
(12)
75
2
5
×
3
3
=
=
5
(1)
3
9
(2)
5
10
(3)
2
3
(4)
3
4
(5)
2
9
(6)
7
8
(7)
5
10
(8)
5
3
(9)
2
3
(10)
5
10
(11)
3
9
(12)
3
5