［文字サイズの変更］
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©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 次の式を，記号×を使って書きましょう
[071-00]
(1)
−7
c
(2)
−3
c
(3)
9
a
(4)
3
p
(5)
8
m
(6)
10
m
(7)
5
c
(8)
−9
a
(9)
5
c
(10)
8
c
(11)
3
c
(12)
−2
p
(13)
8
m
(14)
−10
p
(15)
−4
x
(16)
−3
c
(17)
−3
x
(18)
−7
p
(19)
−3
c
(20)
5
c
(21)
−2
x
(22)
−10
a
(23)
9
p
(24)
−6
c
(25)
5
a
(26)
9
p
(27)
10
m
(28)
−9
a
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−7
c
=
(
−7
)
×
c
(2)
−3
c
=
(
−3
)
×
c
(3)
9
a
=
9
×
a
(4)
3
p
=
3
×
p
(5)
8
m
=
8
×
m
(6)
10
m
=
10
×
m
(7)
5
c
=
5
×
c
(8)
−9
a
=
(
−9
)
×
a
(9)
5
c
=
5
×
c
(10)
8
c
=
8
×
c
(11)
3
c
=
3
×
c
(12)
−2
p
=
(
−2
)
×
p
(13)
8
m
=
8
×
m
(14)
−10
p
=
(
−10
)
×
p
(15)
−4
x
=
(
−4
)
×
x
(16)
−3
c
=
(
−3
)
×
c
(17)
−3
x
=
(
−3
)
×
x
(18)
−7
p
=
(
−7
)
×
p
(19)
−3
c
=
(
−3
)
×
c
(20)
5
c
=
5
×
c
(21)
−2
x
=
(
−2
)
×
x
(22)
−10
a
=
(
−10
)
×
a
(23)
9
p
=
9
×
p
(24)
−6
c
=
(
−6
)
×
c
(25)
5
a
=
5
×
a
(26)
9
p
=
9
×
p
(27)
10
m
=
10
×
m
(28)
−9
a
=
(
−9
)
×
a