［文字サイズの変更］
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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 次の式を，文字式の表し方にしたがって書きましょう
[07C-00]
(1)
a
÷
b
÷
c
×
4
÷
d
(2)
a
×
b
×
c
÷
d
×
4
(3)
a
÷
b
÷
(
−10
)
×
c
(4)
2
×
a
÷
b
×
c
(5)
a
×
b
÷
(
−5
)
(6)
a
×
b
×
8
×
c
(7)
a
×
(
−7
)
×
b
÷
c
(8)
3
×
a
÷
b
(9)
a
×
b
×
c
×
(
−4
)
×
d
(10)
a
÷
b
÷
(
−7
)
÷
c
×
d
(11)
8
×
a
÷
b
÷
c
÷
d
(12)
a
×
b
×
c
÷
2
÷
d
(13)
a
×
3
÷
b
÷
c
×
d
(14)
a
÷
b
×
(
−7
)
(15)
a
×
b
÷
9
×
c
×
d
(16)
5
÷
a
÷
b
(17)
(
−8
)
×
a
×
b
÷
c
÷
d
(18)
a
÷
b
×
5
(19)
a
×
b
×
(
−7
)
(20)
(
−5
)
÷
a
×
b
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
÷
b
÷
c
×
4
÷
d
4
a
=
b
c
d
(2)
a
×
b
×
c
÷
d
×
4
4
a
b
c
=
d
(3)
a
÷
b
÷
(
−10
)
×
c
a
c
=
−
10
b
(4)
2
×
a
÷
b
×
c
2
a
c
=
b
(5)
a
×
b
÷
(
−5
)
a
b
=
−
5
(6)
a
×
b
×
8
×
c
=
8
a
b
c
(7)
a
×
(
−7
)
×
b
÷
c
7
a
b
=
−
c
(8)
3
×
a
÷
b
3
a
=
b
(9)
a
×
b
×
c
×
(
−4
)
×
d
=
−4
a
b
c
d
(10)
a
÷
b
÷
(
−7
)
÷
c
×
d
a
d
=
−
7
b
c
(11)
8
×
a
÷
b
÷
c
÷
d
8
a
=
b
c
d
(12)
a
×
b
×
c
÷
2
÷
d
a
b
c
=
2
d
(13)
a
×
3
÷
b
÷
c
×
d
3
a
d
=
b
c
(14)
a
÷
b
×
(
−7
)
7
a
=
−
b
(15)
a
×
b
÷
9
×
c
×
d
a
b
c
d
=
9
(16)
5
÷
a
÷
b
5
=
a
b
(17)
(
−8
)
×
a
×
b
÷
c
÷
d
8
a
b
=
−
c
d
(18)
a
÷
b
×
5
5
a
=
b
(19)
a
×
b
×
(
−7
)
=
−7
a
b
(20)
(
−5
)
÷
a
×
b
5
b
=
−
a