［文字サイズの変更］
▼
▲
©2019 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
÷
d
×
6
(2)
2
×
a
×
b
(3)
a
÷
(
−10
)
÷
b
×
c
(4)
a
×
b
×
6
×
c
×
d
(5)
(
−10
)
÷
a
×
b
×
c
(6)
a
÷
4
÷
b
×
c
÷
d
(7)
a
×
7
÷
b
×
c
(8)
a
÷
(
−3
)
×
b
(9)
a
÷
b
÷
5
÷
c
÷
d
(10)
a
÷
b
×
c
÷
6
÷
d
(11)
a
÷
b
÷
7
(12)
a
÷
b
÷
c
×
d
×
(
−9
)
(13)
a
×
(
−6
)
×
b
(14)
a
×
b
×
5
÷
c
(15)
a
×
b
÷
(
−10
)
÷
c
×
d
(16)
a
×
b
×
5
÷
c
÷
d
(17)
a
÷
3
÷
b
(18)
a
×
b
÷
2
×
c
×
d
(19)
2
÷
a
×
b
(20)
a
×
3
÷
b
×
c
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
÷
b
×
c
÷
d
×
6
6
a
c
=
b
d
(2)
2
×
a
×
b
=
2
a
b
(3)
a
÷
(
−10
)
÷
b
×
c
a
c
=
−
10
b
(4)
a
×
b
×
6
×
c
×
d
=
6
a
b
c
d
(5)
(
−10
)
÷
a
×
b
×
c
10
b
c
=
−
a
(6)
a
÷
4
÷
b
×
c
÷
d
a
c
=
4
b
d
(7)
a
×
7
÷
b
×
c
7
a
c
=
b
(8)
a
÷
(
−3
)
×
b
a
b
=
−
3
(9)
a
÷
b
÷
5
÷
c
÷
d
a
=
5
b
c
d
(10)
a
÷
b
×
c
÷
6
÷
d
a
c
=
6
b
d
(11)
a
÷
b
÷
7
a
=
7
b
(12)
a
÷
b
÷
c
×
d
×
(
−9
)
9
a
d
=
−
b
c
(13)
a
×
(
−6
)
×
b
=
−6
a
b
(14)
a
×
b
×
5
÷
c
5
a
b
=
c
(15)
a
×
b
÷
(
−10
)
÷
c
×
d
a
b
d
=
−
10
c
(16)
a
×
b
×
5
÷
c
÷
d
5
a
b
=
c
d
(17)
a
÷
3
÷
b
a
=
3
b
(18)
a
×
b
÷
2
×
c
×
d
a
b
c
d
=
2
(19)
2
÷
a
×
b
2
b
=
a
(20)
a
×
3
÷
b
×
c
3
a
c
=
b