［文字サイズの変更］
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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)
4
a
b
(2)
3
b
a
(3)
5
a
b
c
d
(4)
2
b
c
d
a
(5)
2
a
b
c
(6)
a
b
5
c
(7)
a
c
6
b
(8)
2
a
b
(9)
7
d
a
b
c
(10)
8
b
a
(11)
a
8
b
c
d
(12)
8
a
b
(13)
a
2
b
(14)
a
b
8
c
(15)
a
b
5
c
(16)
5
b
a
(17)
5
a
b
(18)
9
a
b
c
(19)
3
a
b
(20)
4
a
b
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
4
a
b
=
4
÷
a
÷
b
(2)
3
b
a
=
3
×
b
÷
a
(3)
5
a
b
c
d
=
5
×
a
×
b
×
c
÷
d
(4)
2
b
c
d
a
=
2
×
b
×
c
×
d
÷
a
(5)
2
a
b
c
=
2
×
a
×
b
×
c
(6)
a
b
5
c
=
a
×
b
÷
5
÷
c
(7)
a
c
6
b
=
a
×
c
÷
6
÷
b
(8)
2
a
b
=
2
×
a
÷
b
(9)
7
d
a
b
c
=
7
×
d
÷
a
÷
b
÷
c
(10)
8
b
a
=
8
×
b
÷
a
(11)
a
8
b
c
d
=
a
÷
8
÷
b
÷
c
÷
d
(12)
8
a
b
=
8
×
a
×
b
(13)
a
2
b
=
a
÷
2
÷
b
(14)
a
b
8
c
=
a
×
b
÷
8
÷
c
(15)
a
b
5
c
=
a
×
b
÷
5
÷
c
(16)
5
b
a
=
5
×
b
÷
a
(17)
5
a
b
=
5
×
a
÷
b
(18)
9
a
b
c
=
9
×
a
×
b
÷
c
(19)
3
a
b
=
3
÷
a
÷
b
(20)
4
a
b
=
4
×
a
×
b