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