［文字サイズの変更］
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©2024 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
÷
(
−8
)
(2)
a
÷
(
−8
)
÷
b
(3)
a
×
(
−8
)
÷
b
÷
c
(4)
a
÷
5
÷
b
(5)
3
×
a
÷
b
×
c
(6)
a
÷
b
×
c
÷
(
−10
)
×
d
(7)
a
÷
5
÷
b
×
c
(8)
a
×
b
×
c
×
d
÷
8
(9)
3
÷
a
÷
b
÷
c
×
d
(10)
a
×
b
×
c
×
(
−5
)
(11)
a
÷
b
÷
3
×
c
÷
d
(12)
a
×
(
−4
)
×
b
÷
c
×
d
(13)
a
÷
6
×
b
(14)
(
−2
)
÷
a
×
b
(15)
a
÷
(
−8
)
×
b
(16)
a
×
b
÷
(
−7
)
×
c
×
d
(17)
8
×
a
×
b
(18)
a
×
(
−3
)
×
b
÷
c
×
d
(19)
a
÷
b
×
10
÷
c
(20)
a
×
b
×
(
−3
)
÷
c
÷
d
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
÷
b
÷
(
−8
)
a
=
−
8
b
(2)
a
÷
(
−8
)
÷
b
a
=
−
8
b
(3)
a
×
(
−8
)
÷
b
÷
c
8
a
=
−
b
c
(4)
a
÷
5
÷
b
a
=
5
b
(5)
3
×
a
÷
b
×
c
3
a
c
=
b
(6)
a
÷
b
×
c
÷
(
−10
)
×
d
a
c
d
=
−
10
b
(7)
a
÷
5
÷
b
×
c
a
c
=
5
b
(8)
a
×
b
×
c
×
d
÷
8
a
b
c
d
=
8
(9)
3
÷
a
÷
b
÷
c
×
d
3
d
=
a
b
c
(10)
a
×
b
×
c
×
(
−5
)
=
−5
a
b
c
(11)
a
÷
b
÷
3
×
c
÷
d
a
c
=
3
b
d
(12)
a
×
(
−4
)
×
b
÷
c
×
d
4
a
b
d
=
−
c
(13)
a
÷
6
×
b
a
b
=
6
(14)
(
−2
)
÷
a
×
b
2
b
=
−
a
(15)
a
÷
(
−8
)
×
b
a
b
=
−
8
(16)
a
×
b
÷
(
−7
)
×
c
×
d
a
b
c
d
=
−
7
(17)
8
×
a
×
b
=
8
a
b
(18)
a
×
(
−3
)
×
b
÷
c
×
d
3
a
b
d
=
−
c
(19)
a
÷
b
×
10
÷
c
10
a
=
b
c
(20)
a
×
b
×
(
−3
)
÷
c
÷
d
3
a
b
=
−
c
d