［文字サイズの変更］
▼
▲
©2018 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
×
(
−10
)
×
c
÷
d
(2)
a
÷
b
÷
c
÷
(
−2
)
(3)
a
×
b
×
(
−8
)
(4)
a
÷
b
÷
c
÷
2
(5)
a
×
b
×
c
×
d
÷
(
−8
)
(6)
a
÷
(
−3
)
×
b
(7)
a
×
b
×
8
÷
c
÷
d
(8)
(
−5
)
÷
a
÷
b
÷
c
(9)
7
×
a
×
b
÷
c
÷
d
(10)
a
×
(
−9
)
÷
b
×
c
÷
d
(11)
a
×
b
×
c
×
3
×
d
(12)
a
×
6
÷
b
(13)
a
÷
b
÷
6
×
c
(14)
a
÷
b
×
6
×
c
÷
d
(15)
a
×
b
×
(
−8
)
÷
c
÷
d
(16)
a
×
b
÷
c
×
(
−10
)
×
d
(17)
10
÷
a
×
b
(18)
a
×
b
÷
c
×
6
(19)
a
×
b
÷
c
×
(
−9
)
(20)
(
−10
)
÷
a
÷
b
©2018 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
÷
b
×
(
−10
)
×
c
÷
d
10
a
c
=
−
b
d
(2)
a
÷
b
÷
c
÷
(
−2
)
a
=
−
2
b
c
(3)
a
×
b
×
(
−8
)
=
−8
a
b
(4)
a
÷
b
÷
c
÷
2
a
=
2
b
c
(5)
a
×
b
×
c
×
d
÷
(
−8
)
a
b
c
d
=
−
8
(6)
a
÷
(
−3
)
×
b
a
b
=
−
3
(7)
a
×
b
×
8
÷
c
÷
d
8
a
b
=
c
d
(8)
(
−5
)
÷
a
÷
b
÷
c
5
=
−
a
b
c
(9)
7
×
a
×
b
÷
c
÷
d
7
a
b
=
c
d
(10)
a
×
(
−9
)
÷
b
×
c
÷
d
9
a
c
=
−
b
d
(11)
a
×
b
×
c
×
3
×
d
=
3
a
b
c
d
(12)
a
×
6
÷
b
6
a
=
b
(13)
a
÷
b
÷
6
×
c
a
c
=
6
b
(14)
a
÷
b
×
6
×
c
÷
d
6
a
c
=
b
d
(15)
a
×
b
×
(
−8
)
÷
c
÷
d
8
a
b
=
−
c
d
(16)
a
×
b
÷
c
×
(
−10
)
×
d
10
a
b
d
=
−
c
(17)
10
÷
a
×
b
10
b
=
a
(18)
a
×
b
÷
c
×
6
6
a
b
=
c
(19)
a
×
b
÷
c
×
(
−9
)
9
a
b
=
−
c
(20)
(
−10
)
÷
a
÷
b
10
=
−
a
b