［文字サイズの変更］
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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の計算をしましょう
[160-00]
(1)
3
6
x
×
(
−5
)
z
(2)
3
8
p
×
(
−3
)
r
(3)
3
p
×
(
−8
)
p
(4)
−4
x
×
(
−3
)
z
(5)
2
x
×
5
y
(6)
2
5
p
×
(
−7
)
r
(7)
2
8
u
×
(
−2
)
w
(8)
−3
u
×
9
w
(9)
−4
p
×
(
−9
)
r
(10)
3
6
u
×
9
v
(11)
−3
x
×
6
x
(12)
3
−5
p
×
9
r
(13)
−8
x
×
3
z
(14)
2
5
x
×
(
−2
)
x
(15)
3
−4
x
×
(
−6
)
x
(16)
8
p
×
(
−5
)
p
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
6
x
×
(
−5
)
z
3
=
−30
x
z
(2)
3
8
p
×
(
−3
)
r
3
=
−24
p
r
(3)
3
p
×
(
−8
)
p
2
=
−24
p
(4)
−4
x
×
(
−3
)
z
=
12
x
z
(5)
2
x
×
5
y
=
10
x
y
(6)
2
5
p
×
(
−7
)
r
2
=
−35
p
r
(7)
2
8
u
×
(
−2
)
w
2
=
−16
u
w
(8)
−3
u
×
9
w
=
−27
u
w
(9)
−4
p
×
(
−9
)
r
=
36
p
r
(10)
3
6
u
×
9
v
3
=
54
u
v
(11)
−3
x
×
6
x
2
=
−18
x
(12)
3
−5
p
×
9
r
3
=
−45
p
r
(13)
−8
x
×
3
z
=
−24
x
z
(14)
2
5
x
×
(
−2
)
x
3
=
−10
x
(15)
3
−4
x
×
(
−6
)
x
4
=
24
x
(16)
8
p
×
(
−5
)
p
2
=
−40
p