[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)
27
(2)
567
(3)
500
(4)
128
(5)
112
(6)
28
(7)
162
(8)
320
(9)
27
(10)
243
(11)
192
(12)
147
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
27
2
3
×
3
3
=
=
3
(2)
567
2
9
×
7
7
=
=
9
(3)
500
2
10
×
5
5
=
=
10
(4)
128
2
8
×
2
2
=
=
8
(5)
112
2
4
×
7
7
=
=
4
(6)
28
2
2
×
7
7
=
=
2
(7)
162
2
9
×
2
2
=
=
9
(8)
320
2
8
×
5
5
=
=
8
(9)
27
2
3
×
3
3
=
=
3
(10)
243
2
9
×
3
3
=
=
9
(11)
192
2
8
×
3
3
=
=
8
(12)
147
2
7
×
3
3
=
=
7
(1)
3
3
(2)
7
9
(3)
5
10
(4)
2
8
(5)
7
4
(6)
7
2
(7)
2
9
(8)
5
8
(9)
3
3
(10)
3
9
(11)
3
8
(12)
3
7