［文字サイズの変更］
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©2025 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
[075-00]
(1)
3
(
c
＋
d
)
(2)
3
(
−8
)
(3)
2
(
−8
)
(4)
3
(
−8
)
(5)
4
4
(6)
2
(
−4
)
(7)
3
p
(8)
2
a
(9)
4
8
(10)
3
(
c
＋
d
)
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
(
c
＋
d
)
=
(
c
＋
d
)
×
(
c
＋
d
)
×
(
c
＋
d
)
(2)
3
(
−8
)
=
(
−8
)
×
(
−8
)
×
(
−8
)
(3)
2
(
−8
)
=
(
−8
)
×
(
−8
)
(4)
3
(
−8
)
=
(
−8
)
×
(
−8
)
×
(
−8
)
(5)
4
4
=
4
×
4
×
4
×
4
(6)
2
(
−4
)
=
(
−4
)
×
(
−4
)
(7)
3
p
=
p
×
p
×
p
(8)
2
a
=
a
×
a
(9)
4
8
=
8
×
8
×
8
×
8
(10)
3
(
c
＋
d
)
=
(
c
＋
d
)
×
(
c
＋
d
)
×
(
c
＋
d
)