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▲
©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)
20
(2)
700
(3)
32
(4)
192
(5)
75
(6)
32
(7)
147
(8)
320
(9)
700
(10)
20
(11)
567
(12)
45
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
20
2
2
×
5
5
=
=
2
(2)
700
2
10
×
7
7
=
=
10
(3)
32
2
4
×
2
2
=
=
4
(4)
192
2
8
×
3
3
=
=
8
(5)
75
2
5
×
3
3
=
=
5
(6)
32
2
4
×
2
2
=
=
4
(7)
147
2
7
×
3
3
=
=
7
(8)
320
2
8
×
5
5
=
=
8
(9)
700
2
10
×
7
7
=
=
10
(10)
20
2
2
×
5
5
=
=
2
(11)
567
2
9
×
7
7
=
=
9
(12)
45
2
3
×
5
5
=
=
3
(1)
5
2
(2)
7
10
(3)
2
4
(4)
3
8
(5)
3
5
(6)
2
4
(7)
3
7
(8)
5
8
(9)
7
10
(10)
5
2
(11)
7
9
(12)
5
3