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©2026 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)
c
×
4
(2)
a
×
(
−10
)
(3)
x
×
(
−5
)
(4)
m
×
(
−2
)
(5)
x
×
3
(6)
(
−8
)
×
a
(7)
m
×
(
−6
)
(8)
m
×
(
−7
)
(9)
p
×
5
(10)
x
×
(
−5
)
(11)
(
−8
)
×
a
(12)
(
−5
)
×
c
(13)
m
×
5
(14)
4
×
c
(15)
6
×
x
(16)
7
×
c
(17)
4
×
m
(18)
(
−3
)
×
m
(19)
5
×
c
(20)
6
×
x
(21)
10
×
m
(22)
m
×
8
(23)
a
×
(
−6
)
(24)
p
×
8
(25)
(
−9
)
×
m
(26)
m
×
8
(27)
c
×
(
−6
)
(28)
m
×
(
−10
)
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
c
×
4
=
4
c
(2)
a
×
(
−10
)
=
−10
a
(3)
x
×
(
−5
)
=
−5
x
(4)
m
×
(
−2
)
=
−2
m
(5)
x
×
3
=
3
x
(6)
(
−8
)
×
a
=
−8
a
(7)
m
×
(
−6
)
=
−6
m
(8)
m
×
(
−7
)
=
−7
m
(9)
p
×
5
=
5
p
(10)
x
×
(
−5
)
=
−5
x
(11)
(
−8
)
×
a
=
−8
a
(12)
(
−5
)
×
c
=
−5
c
(13)
m
×
5
=
5
m
(14)
4
×
c
=
4
c
(15)
6
×
x
=
6
x
(16)
7
×
c
=
7
c
(17)
4
×
m
=
4
m
(18)
(
−3
)
×
m
=
−3
m
(19)
5
×
c
=
5
c
(20)
6
×
x
=
6
x
(21)
10
×
m
=
10
m
(22)
m
×
8
=
8
m
(23)
a
×
(
−6
)
=
−6
a
(24)
p
×
8
=
8
p
(25)
(
−9
)
×
m
=
−9
m
(26)
m
×
8
=
8
m
(27)
c
×
(
−6
)
=
−6
c
(28)
m
×
(
−10
)
=
−10
m