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