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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の式を，記号×÷を使って書きましょう
[07D-00]
(1)
6
a
b
(2)
4
b
c
a
d
(3)
6
a
b
c
(4)
5
b
c
d
a
(5)
8
a
b
c
d
(6)
a
2
b
(7)
a
c
d
2
b
(8)
10
a
b
c
(9)
6
b
a
(10)
3
a
b
(11)
10
a
b
(12)
5
a
b
c
(13)
9
a
b
c
(14)
a
8
b
(15)
a
b
4
c
(16)
a
7
b
(17)
5
a
b
(18)
7
a
b
c
d
(19)
a
9
b
(20)
a
d
2
b
c
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
6
a
b
=
6
×
a
÷
b
(2)
4
b
c
a
d
=
4
×
b
×
c
÷
a
÷
d
(3)
6
a
b
c
=
6
×
a
×
b
×
c
(4)
5
b
c
d
a
=
5
×
b
×
c
×
d
÷
a
(5)
8
a
b
c
d
=
8
×
a
÷
b
÷
c
÷
d
(6)
a
2
b
=
a
÷
2
÷
b
(7)
a
c
d
2
b
=
a
×
c
×
d
÷
2
÷
b
(8)
10
a
b
c
=
10
×
a
×
b
×
c
(9)
6
b
a
=
6
×
b
÷
a
(10)
3
a
b
=
3
÷
a
÷
b
(11)
10
a
b
=
10
×
a
×
b
(12)
5
a
b
c
=
5
×
a
×
b
÷
c
(13)
9
a
b
c
=
9
×
a
×
b
÷
c
(14)
a
8
b
=
a
÷
8
÷
b
(15)
a
b
4
c
=
a
×
b
÷
4
÷
c
(16)
a
7
b
=
a
÷
7
÷
b
(17)
5
a
b
=
5
×
a
×
b
(18)
7
a
b
c
d
=
7
÷
a
÷
b
÷
c
÷
d
(19)
a
9
b
=
a
÷
9
÷
b
(20)
a
d
2
b
c
=
a
×
d
÷
2
÷
b
÷
c