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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
[161-00]
(1)
3
2
8
u
v
×
(
−2
)
v
(2)
3
3
7
p
×
4
p
(3)
2
10
p
q
×
(
−10
)
q
r
(4)
2
2
2
8
p
q
×
(
−3
)
p
q
(5)
3
−4
p
q
×
8
p
q
(6)
3
2
−6
a
b
×
4
a
(7)
2
−6
p
×
(
−8
)
p
(8)
2
2
6
p
q
×
(
−2
)
p
(9)
2
2
−5
x
×
(
−8
)
x
(10)
2
3
−8
a
×
(
−4
)
a
(11)
3
3
−6
a
×
(
−3
)
a
(12)
3
2
10
p
×
2
p
(13)
3
3
−6
a
×
(
−3
)
a
(14)
3
2
5
p
×
(
−7
)
p
(15)
2
3
−3
x
×
(
−8
)
x
(16)
3
2
−4
u
×
5
u
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
3
2
8
u
v
×
(
−2
)
v
3
2
3
3
=
8
u
v
×
(
−2
)
v
=
−16
u
v
(2)
3
3
7
p
×
4
p
3
3
6
=
7
p
×
4
p
=
28
p
(3)
2
10
p
q
×
(
−10
)
q
r
2
3
=
10
p
q
×
(
−10
)
q
r
=
−100
p
q
r
(4)
2
2
2
8
p
q
×
(
−3
)
p
q
2
2
2
4
3
=
8
p
q
×
(
−3
)
p
q
=
−24
p
q
(5)
3
−4
p
q
×
8
p
q
3
4
2
=
−4
p
q
×
8
p
q
=
−32
p
q
(6)
3
2
−6
a
b
×
4
a
3
2
4
2
=
−6
a
b
×
4
a
=
−24
a
b
(7)
2
−6
p
×
(
−8
)
p
2
3
=
−6
p
×
(
−8
)
p
=
48
p
(8)
2
2
6
p
q
×
(
−2
)
p
2
2
3
2
=
6
p
q
×
(
−2
)
p
=
−12
p
q
(9)
2
2
−5
x
×
(
−8
)
x
2
2
4
=
−5
x
×
(
−8
)
x
=
40
x
(10)
2
3
−8
a
×
(
−4
)
a
2
3
5
=
−8
a
×
(
−4
)
a
=
32
a
(11)
3
3
−6
a
×
(
−3
)
a
3
3
6
=
−6
a
×
(
−3
)
a
=
18
a
(12)
3
2
10
p
×
2
p
3
2
5
=
10
p
×
2
p
=
20
p
(13)
3
3
−6
a
×
(
−3
)
a
3
3
6
=
−6
a
×
(
−3
)
a
=
18
a
(14)
3
2
5
p
×
(
−7
)
p
3
2
5
=
5
p
×
(
−7
)
p
=
−35
p
(15)
2
3
−3
x
×
(
−8
)
x
2
3
5
=
−3
x
×
(
−8
)
x
=
24
x
(16)
3
2
−4
u
×
5
u
3
2
5
=
−4
u
×
5
u
=
−20
u