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©2019 数学クラブ http://sugaku.club/
月 日（ ）
● 次の計算をしましょう
[160-00]
(1)
−10
p
×
(
−7
)
p
(2)
3
5
x
×
(
−4
)
y
(3)
5
u
×
(
−10
)
v
(4)
−4
u
×
(
−3
)
u
(5)
4
x
×
2
y
(6)
2
−3
a
×
5
c
(7)
2
−9
p
×
(
−3
)
q
(8)
−9
u
×
7
w
(9)
2
−2
p
×
9
r
(10)
3
4
x
×
(
−8
)
x
(11)
9
a
×
8
b
(12)
3
9
u
×
(
−8
)
v
(13)
3
x
×
(
−7
)
x
(14)
−4
p
×
(
−10
)
r
(15)
4
x
×
7
z
(16)
3
−9
p
×
(
−3
)
q
©2019 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
−10
p
×
(
−7
)
p
2
=
70
p
(2)
3
5
x
×
(
−4
)
y
3
=
−20
x
y
(3)
5
u
×
(
−10
)
v
=
−50
u
v
(4)
−4
u
×
(
−3
)
u
2
=
12
u
(5)
4
x
×
2
y
=
8
x
y
(6)
2
−3
a
×
5
c
2
=
−15
a
c
(7)
2
−9
p
×
(
−3
)
q
2
=
27
p
q
(8)
−9
u
×
7
w
=
−63
u
w
(9)
2
−2
p
×
9
r
2
=
−18
p
r
(10)
3
4
x
×
(
−8
)
x
4
=
−32
x
(11)
9
a
×
8
b
=
72
a
b
(12)
3
9
u
×
(
−8
)
v
3
=
−72
u
v
(13)
3
x
×
(
−7
)
x
2
=
−21
x
(14)
−4
p
×
(
−10
)
r
=
40
p
r
(15)
4
x
×
7
z
=
28
x
z
(16)
3
−9
p
×
(
−3
)
q
3
=
27
p
q