[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)
63
(2)
98
(3)
147
(4)
147
(5)
98
(6)
243
(7)
245
(8)
27
(9)
567
(10)
175
(11)
28
(12)
20
©2025 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
63
2
3
×
7
7
=
=
3
(2)
98
2
7
×
2
2
=
=
7
(3)
147
2
7
×
3
3
=
=
7
(4)
147
2
7
×
3
3
=
=
7
(5)
98
2
7
×
2
2
=
=
7
(6)
243
2
9
×
3
3
=
=
9
(7)
245
2
7
×
5
5
=
=
7
(8)
27
2
3
×
3
3
=
=
3
(9)
567
2
9
×
7
7
=
=
9
(10)
175
2
5
×
7
7
=
=
5
(11)
28
2
2
×
7
7
=
=
2
(12)
20
2
2
×
5
5
=
=
2
(1)
7
3
(2)
2
7
(3)
3
7
(4)
3
7
(5)
2
7
(6)
3
9
(7)
5
7
(8)
3
3
(9)
7
9
(10)
7
5
(11)
7
2
(12)
5
2