［文字サイズの変更］
▼
▲
©2025 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
[070-00]
(1)
a
×
(
−5
)
(2)
(
−2
)
×
x
(3)
3
×
a
(4)
a
×
6
(5)
(
−8
)
×
c
(6)
m
×
(
−4
)
(7)
(
−4
)
×
c
(8)
(
−7
)
×
m
(9)
x
×
10
(10)
p
×
(
−2
)
(11)
7
×
p
(12)
p
×
3
(13)
x
×
(
−7
)
(14)
(
−8
)
×
m
(15)
a
×
(
−7
)
(16)
x
×
(
−9
)
(17)
5
×
c
(18)
9
×
x
(19)
c
×
(
−9
)
(20)
(
−9
)
×
m
(21)
7
×
x
(22)
2
×
x
(23)
m
×
4
(24)
x
×
(
−9
)
(25)
x
×
(
−4
)
(26)
c
×
4
(27)
p
×
4
(28)
10
×
a
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
a
×
(
−5
)
=
−5
a
(2)
(
−2
)
×
x
=
−2
x
(3)
3
×
a
=
3
a
(4)
a
×
6
=
6
a
(5)
(
−8
)
×
c
=
−8
c
(6)
m
×
(
−4
)
=
−4
m
(7)
(
−4
)
×
c
=
−4
c
(8)
(
−7
)
×
m
=
−7
m
(9)
x
×
10
=
10
x
(10)
p
×
(
−2
)
=
−2
p
(11)
7
×
p
=
7
p
(12)
p
×
3
=
3
p
(13)
x
×
(
−7
)
=
−7
x
(14)
(
−8
)
×
m
=
−8
m
(15)
a
×
(
−7
)
=
−7
a
(16)
x
×
(
−9
)
=
−9
x
(17)
5
×
c
=
5
c
(18)
9
×
x
=
9
x
(19)
c
×
(
−9
)
=
−9
c
(20)
(
−9
)
×
m
=
−9
m
(21)
7
×
x
=
7
x
(22)
2
×
x
=
2
x
(23)
m
×
4
=
4
m
(24)
x
×
(
−9
)
=
−9
x
(25)
x
×
(
−4
)
=
−4
x
(26)
c
×
4
=
4
c
(27)
p
×
4
=
4
p
(28)
10
×
a
=
10
a