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©2024 数学クラブ http://sugaku.club/
月 日（ ）
● 次の計算をしましょう
[161-00]
(1)
2
3
6
u
×
(
−3
)
u
(2)
2
3
9
u
×
(
−8
)
u
(3)
2
2
−10
p
q
×
6
q
(4)
2
2
7
a
×
(
−8
)
a
(5)
3
3
6
x
×
(
−8
)
x
(6)
2
9
u
v
×
(
−6
)
u
(7)
2
3
9
x
y
×
6
y
z
(8)
3
2
3
x
×
2
x
(9)
2
3
5
u
×
(
−9
)
u
(10)
2
2
−8
u
×
5
u
(11)
2
−7
p
×
9
p
(12)
3
−3
u
v
×
(
−3
)
u
(13)
3
2
4
u
×
(
−4
)
u
(14)
3
3
9
x
×
(
−3
)
x
(15)
3
9
u
×
(
−10
)
u
(16)
2
3
8
x
y
×
4
y
z
©2024 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
3
6
u
×
(
−3
)
u
2
3
5
=
6
u
×
(
−3
)
u
=
−18
u
(2)
2
3
9
u
×
(
−8
)
u
2
3
5
=
9
u
×
(
−8
)
u
=
−72
u
(3)
2
2
−10
p
q
×
6
q
2
2
4
=
−10
p
q
×
6
q
=
−60
p
q
(4)
2
2
7
a
×
(
−8
)
a
2
2
4
=
7
a
×
(
−8
)
a
=
−56
a
(5)
3
3
6
x
×
(
−8
)
x
3
3
6
=
6
x
×
(
−8
)
x
=
−48
x
(6)
2
9
u
v
×
(
−6
)
u
2
2
2
=
9
u
v
×
(
−6
)
u
=
−54
u
v
(7)
2
3
9
x
y
×
6
y
z
2
3
2
4
=
9
x
y
×
6
y
z
=
54
x
y
z
(8)
3
2
3
x
×
2
x
3
2
5
=
3
x
×
2
x
=
6
x
(9)
2
3
5
u
×
(
−9
)
u
2
3
5
=
5
u
×
(
−9
)
u
=
−45
u
(10)
2
2
−8
u
×
5
u
2
2
4
=
−8
u
×
5
u
=
−40
u
(11)
2
−7
p
×
9
p
2
3
=
−7
p
×
9
p
=
−63
p
(12)
3
−3
u
v
×
(
−3
)
u
3
2
3
=
−3
u
v
×
(
−3
)
u
=
9
u
v
(13)
3
2
4
u
×
(
−4
)
u
3
2
5
=
4
u
×
(
−4
)
u
=
−16
u
(14)
3
3
9
x
×
(
−3
)
x
3
3
6
=
9
x
×
(
−3
)
x
=
−27
x
(15)
3
9
u
×
(
−10
)
u
3
4
=
9
u
×
(
−10
)
u
=
−90
u
(16)
2
3
8
x
y
×
4
y
z
2
3
5
=
8
x
y
×
4
y
z
=
32
x
y
z