［文字サイズの変更］
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©2019 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)
4
x
(2)
−9
a
(3)
−9
m
(4)
−10
m
(5)
3
m
(6)
−4
c
(7)
8
p
(8)
2
c
(9)
−3
m
(10)
9
a
(11)
−7
c
(12)
−6
c
(13)
−7
c
(14)
−4
p
(15)
−2
p
(16)
4
c
(17)
6
p
(18)
−3
m
(19)
−8
x
(20)
9
p
(21)
−3
m
(22)
−6
m
(23)
−7
c
(24)
8
p
(25)
−7
m
(26)
−10
x
(27)
−8
m
(28)
−7
a
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
4
x
=
4
×
x
(2)
−9
a
=
(
−9
)
×
a
(3)
−9
m
=
(
−9
)
×
m
(4)
−10
m
=
(
−10
)
×
m
(5)
3
m
=
3
×
m
(6)
−4
c
=
(
−4
)
×
c
(7)
8
p
=
8
×
p
(8)
2
c
=
2
×
c
(9)
−3
m
=
(
−3
)
×
m
(10)
9
a
=
9
×
a
(11)
−7
c
=
(
−7
)
×
c
(12)
−6
c
=
(
−6
)
×
c
(13)
−7
c
=
(
−7
)
×
c
(14)
−4
p
=
(
−4
)
×
p
(15)
−2
p
=
(
−2
)
×
p
(16)
4
c
=
4
×
c
(17)
6
p
=
6
×
p
(18)
−3
m
=
(
−3
)
×
m
(19)
−8
x
=
(
−8
)
×
x
(20)
9
p
=
9
×
p
(21)
−3
m
=
(
−3
)
×
m
(22)
−6
m
=
(
−6
)
×
m
(23)
−7
c
=
(
−7
)
×
c
(24)
8
p
=
8
×
p
(25)
−7
m
=
(
−7
)
×
m
(26)
−10
x
=
(
−10
)
×
x
(27)
−8
m
=
(
−8
)
×
m
(28)
−7
a
=
(
−7
)
×
a